\ F^-\\ b. Se 2-, Sr 2+, Br -, Rb + Exercise 4. 1. What noble gas has the same electron configuration as each of the ions in the following compounds? Element Z is . Arrange them in order of increasing radius: rb+, y3+, se2-, br-, sr2: compare the elements na, o, mg and p. place the elements in order of increasing. Lorenzo's class is a bit strange today. 5. Why does the stability of a noble gas electron configuration contribute to the formation of covalent bonds? Isoelectronic - Which Ion is isoelectronic to a particular noble gas - Johnny Cantrell - YouTube Skip navigation Sign in 0:00 / 4:00 Isoelectronic - Which Ion is isoelectronic to a. Positive ions are isoelectronic The period of an element is the horizontal row that the element is located in. Which noble gas has the same electron configuration as potassium sulfide, K2S? It has 3 valence electrons. Final answer. What is the formula of the ion? What is the charge on a calcium ion that is isoelectronic with argon? Predict the atomic radius for potassium, K, given the atomic radius of rubidium, Rb, (0.247 nm) and cesium, Cs, (0.265 nm). . They are notoriously unreactive because they have completely filled s and p sub-shells. a) Al3+, Na+, F-, O2- b) O2-, F-, Na+, Mg2+, Al3+, Which of the following ions have noble gas electron configurations? Textbook Questions.pdf - - Periodic Atomic a) Te Radii 1- > 2022 Ford Maverick Xlt Vs Lariat, D) Halogens tend to have cleansing properties and their reactivity increases as one proceeds down the column. Q: Write the ground state electron configuration of each of the following atoms. Group 1 elements have a noble gas core plus 1 valence electron with an ns 1 configuration. A typical question about isoelectronic series usually involve size comparisons. Fe3+ Se2-Cu2+ Cr3+ Zn2+ 15. The general electron configuration for noble gas atoms is A. ns2np6. 2. The more the no. Each orbital can accommodate two electrons and therefore, a total of 14 electrons can fill the given f sublevel. What are the Physical devices used to construct memories? \ Mg^{2+}\\ c. \ Br^-\\ d. \ Ca^{2+}, Which of the isoelectronic pairs has the same electron configuration? An element with a high EA is more stable as a negatively charged ion. Fe3+, Which one of the following ions is isoelectronic with krypton? What are the 4 major sources of law in Zimbabwe? All rights reserved. We say that that the chloride ion is isoelectronic with the argon atom. Like this answer? A.) 3 Isolectronic electron configurations: Electron configurations of an . Noble Gases. A monatomic ion with a charge of +2 has an electronic configuration of 1s22s22p63s23p64s23d104p6. 5. 1. (b) O and Na^+. This capability allows paramagnetic atoms to be attracted to magnetic fields. C. It makes a +5 cation to become isoelectronic with Krypton. 1.Marieta quiere beber 2.Monica quiere una pizza 3 j.jose quiere. Report. Metal oxides - are basic. What is are the functions of diverse organisms? Not all verbs are used and no verb is used, Based on what you hear, write what each person feels using tener expressions. It is not possible for a cation to be isoelectronic with an anion with both the elements from the same period. (c) Li^+ and He. Which one of the following is NOT isoelectronic with Kr? Kauna unahang parabula na inilimbag sa bhutan? D. It has 1 electron in its highest occupied subshell. Noble gas configuration is a shorthand electronic configuration that uses the last noble gas symbol that is included in the electronic configuration Our experts can answer your tough homework and study questions. What is the condensed noble gas electron configuration for Nb atom? the electron configuration for Zn +2: [Ar]3d 10 . Basic Life Support: CPR and First Aid; First Aid for Hazardous Marine Life Injuries; Oxygen First Aid for Scuba . Complexation of the iron(III) by the thiocyanate ion 3. 3s. Which of these species is isoelectronic with As 3-? Step 4: Determine whether the substance is paramagnetic or diamagnetic. However, how do we know that this is actually taking place and how do we trace what orbital(s)are losing/gaining electrons? Which of the following ions are isoelectronic with Kr? a. K b. Ar c. Br d. O e. N, Which of the following elements is a noble gas? B. of their atomic no. 4. Write the electron dot structures for the following elements: It's some isoelectronic species are. 1. What is the electron configuration of copper? 3. OJO! Li this is neutral and has 3 electrons and is not isoelectronic with neon. Helium atom, hydride ion and lithium ion are all isoelectronic species: They all have the same ground-state electronic configuration as the Noble Gas helium: 1s 2. You should note that thenselectrons are always lost before the (n-1)d when forming cations for transition metals. 1. The valence electrons are an important indicator of the reactivity of the element. (a) d-transition metals (b) representative elements (c . What is the formula of the ion? In the real world, phenotypes are determined by either an individuals genes or the enivornment. I am not sure about this. Who were the models in Van Halen's finish what you started video? . a. Ga^{3+} b. Cl^- c. P^{3-} d. Sc^{3+} e. K^+. In this case, all the 4p subshells are empty; hence, we start by removing from the s orbital, which is the 4s orbital. To find out what is happening, fill in each blank with the appropriate form of one of the verbs listed below. 1 in Group 4A(14) C e. Lowest IE 1 in Period 5 Rb f. Condensed groundstate electron configuration of [Ne] 3s23p2 Si g. Condensed groundstate electron configuration of [Kr] 5s24d6 Ru h. Period 5 element that forms 3+ ion with noble gas configuration Y i. Aldehydes and ketones treated with one equivalent of alcohol form ________. Keep in mind, electron configurations are most stable when they are filled or half-filled. OBJ: Determine the electron configuration beyond the noble gas core given the group number. Atomic radius increases right to left and top to bottom Answer (1 of 5): Ions are the group of atoms or molecules that will gain or lose an electric charge. Isoelectronic refers to two atoms, ions, or molecules that have the same electronic structure and the same number of valence electrons.The term means "equal electric" or "equal charge". Our goal is to thoroughly describe the relationship between the structures and energetics of isoelectronic alkali metal cations and halide ions solvated . 2. Why do people say that forever is not altogether real in love and relationship. Which of the below is the ground state electron configuration of that noble gas? Rb+1 is isoelectronic with Krypton (Kr) Step-by-step explanation Isoelectronics: species that have the same number of electrons Be+2 is isoelectronic with Helium (He) Be +2 (Z = 4) atomic number (Z) = number of protons = 4 number of electrons = number of protons - charge = 4 - 2 = 2 Electron configuration of Be +2: 1s 2 C l ? The noble gas neon (Ne), is isoelectronic with N3- ion (not N . Due to the scarcity of computational data of atomic properties of (A) La_3^+, Ba^+, I^-, Te_2^-, Sb_3^- (B) La_3^+, Ba_2^+, Fr^+, At^-, Te_2^-, Sb_3^- (C) La_3^+, Te_2^+, Cs^+, I^-, Ba_2^-, Sb_3^- (D) La_3^+, Ba_2^+, Cs^+, I^-, Te_2^-, Sb_3^-. Are the ions Cl- and S2- isoelectronic? Dissolution of silver oxalate with nitric acid 2. 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(c) located closest to the nucleus. rb+1 is isoelectronic with which noble gas - dev.aprovis.pl Report. Mg atom consists of 12 electrons with the electronic configuration as 2, 8, 2 . Answered: Which ions are isoelectronic with Xe? | bartleby B. ns2np5. explain? Recommend Documents. A monatomic ion with a charge of +1 has an electron configuration of 1s22s22p63s23p6. Only paramagnetism, and diamagnetism are discussed here. What are some examples of electron configurations. 1s22s22p6 . Any two of K+, Ca2+, Sc3+ 1) What is the charge on the ion that Selenium forms in an ionic compound? b. Rb c. K d. Cl e. Na ____ 10. 8.4g MAS - isoelectronic noble gas Problem1 A monatomic ion with a charge of +1 has an electronic configuration of 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6. 1 in Group 4A(14) C e. Lowest IE 1 in Period 5 Rb f. Condensed groundstate electron configuration of [Ne] 3s23p2 Si g. Condensed groundstate electron configuration of [Kr] 5s24d6 Ru h. Period 5 element that forms 3+ ion with noble gas configuration Y i. Complexation of the iron(III) by the thiocyanate ion 3. The ions that we are considering RSC two minus, S. R two plus, R. V. Plus and br minus. Why are they so important in chemistry? According to the Pauli Exclusion Principle which states that no two identical electrons may take up the same quantum state at the same time, the electron spins are oriented in opposite directions. They all have [Ne] 3s0 = 1s2, 2s2 2p6, 3s0. What is the chemical symbol of the noble gas this ion is isoelectronic with? The following video shows liquid oxygen attracted into a magnetic field created by a strong magnet. 2 Give an example: the following species are isoelectronic with the noble gas kr. Which of the following will usually give away electrons? What is an autosomal trait? Solved The following species are isoelectronic with the | Chegg.com Cool. As b. Rb c. O 67. are found primarily in the Earth's crust in silicate minerals; examples include Li, Mg . The magnetic moment of a system measures the strength and the direction of its magnetism. effect. Both ions Mg2+ and Al3+ and atoms of Ne are isoelectronic with 21 terms. The noble gas electron configuration for iron(II) ion is [Ar] 3d 6. The electron configuration for calcium is: . Examples. Noble gases are not included in these description. 3s. An (mono atomic) ion is called isoelectronic with another element (or ion) when it has the same number of electrons with it. The atom having the valence-shell configuration 4s 2 4p 5 would be in: (a) Group VIA and Period 5 (b) Group IVB and Period 4 (c) Group VIB and Period 7 (d) Group VIIA and Period 4 (e) Group VIIB and Period 4 2. 2. Unlock to view answer. Also odorless and colorless. What are electron configuration orbitals? Sample Questions - Chapter 6 - Texas A&M University Isoelectronic Species Chemistry Tutorial - AUS-e-TUTE Extended periodic table - Wikipedia Chemistry chapter 6 quiz lecture Flashcards - Cram.com Expert Answer According to Chegg guidelines if there are multiple ques View the full answer Transcribed image text: 10. This means that a neutral krypton atom has 36 electrons surrounding its nucleus. Identify at least three ions that are isoelectronic with krypton. the atomic no of oxygen is 8 to reach the nearest noble gas a. Kr; Ne b. Kr; He c. Ar; He d. Ar; Ne e. Ar; Ar. The unpaired electrons are attracted by a magnetic field due to the electrons' magnetic dipole moments. There are many different magnetic forms: including paramagnetism, and diamagnetism, ferromagnetism, and anti-ferromagnetism. The calcium ion (Ca2+), however, has two electrons less. 5. Which of the following are isoelectronic species: Na^+, K^+, Mg^{+2}, Ca^{+2}, S^{2-}, Ar? Oxides of metalloids - are amphoteric. Which noble gas is isoelectronic with each of the following metal ions? Match each type of oxide to correctly with its acid-base behavior. Are the ions V5+, Sc3+, and P3- isoelectronic? C. ns2np4. Halogens have high EAs. What is the ground state electron configuration of the element germanium? Chemistry, 22.06.2019 11:00. What is the chemical symbol of the noble gas thi, Which set of ions are isoelectronic in their ground-state electron configurations? F e 2 + a n d C r iv. a) V3+ b) Ca2+ c) Ar d) Cl- e) S2-. Dunkin' Donuts Employee Uniform Policy, Group of answer choices 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 1s2 2s2 2p6 3s2 3p6 4p6 4d10 1s2 2s2 2p6 3s2 3p6 3d10 4p6 1s2 2s2 2p6 3s2 3p6 4s2 4p6. Rb 1 sru y3t set br ionization energy: electron affinities can be negative, positive, or neutral. halide ions solvated by noble gas atoms.27{33 Moreover, to our knowledge, a system-atic investigation has yet to be performed on metal cations and their corresponding isoelectronic anions. Metal oxides - are basic. So no. There are different ways to write the electronic configuration such as the ground-state electronic configuration or the noble gas electronic configuration. SrO Ca 3N 2 GaS Li 2S MgS 16. Isoelectronic species corhguratl.ns Ne Mg tsoelectronic series: all these species have ten electrons: 6 . Exercise 1. Br, F, I, Cl. What is the electron configuration for a sodium ion? Hence, the species which is isoelectronic with R b + Rb^{+} R b + must also have 36 electrons. (a) potassium ion (b) nitride ion (c) strontium ion (d) iodide ion Answers: (a) K+ is isoelectronic with Ar. Explain. 1 & 2. Video Transcript. We can study the magnetic properties of matter to help us tackle this problem. The same rule will apply to transition metals when forming ions. 2. . The most stable ion of strontium is isoelectronic with a noble gas. Write a formula for the ionic compound that forms between each of the following pairs of elements. What neutral atom is isoelectronic with the Pb2+ ion? Examples of these metals include \(Sc^{3+}\), \(Ti^{4+}\), \(Zn^{2+}\), and \(Cu^+\). Which one of the following ions has a noble-gas electron configuration? This preview shows page 1 - 3 out of 3 pages. Because there are no unpaired electrons, Zn atoms are diamagnetic. (d) I- is isoelectronic with Xe. What is the electron configuration for a nitride ion? This may leave the atom with many unpaired electrons. (Rb - 5s 1) and ends with Xenon (Xe - 5s 2 5p 6). (a) in s orbitals only. An extended periodic table theorises about chemical elements beyond those currently known in the periodic table and proven. As b. Rb c. O 67. are found primarily in the Earth's crust in silicate minerals; examples include Li, Mg . Cr3+ 2. So, we should look for ions and noble gases, and the only ions in the list are: Bromide = Br - Barium cation = Ba 2+ Iron (III) = Fe 3+ Selenide = Se 2- Diamagnetism, to a greater or lesser degree, is a property of all materials and always makes a weak contribution to the material's response to a magnetic field. 4. Since the number . c. Br^-. Are Lebron 18 Good For Wide Feet, (d) located in d orbitals. Like 0 Dislike 0 Report. The element rubidium has an electronic number 37. Which noble gas has the same electron configuration as calcium bromide, CaBr2? -> Atoms are isoelectronic when they have the same electron configuration. Which two species are isoelectronic (identical electron configurations)? 1. a. Sc3+ b. Al3+ c. Ga3+ d. As3-, Which ion does not have a noble gas configuration in its ground state? Arrange them in order of decreasing radius: Rb+ Y3+ Br- Sr2+ Se2- Expert Answer 100% (20 ratings) The ions in order of decreasing ionic radius is:Se2- > Br- > R View the full answer Previous question Next question 2 7 terms. What ion/atoms are isoelectronic? | Wyzant Ask An Expert The P3- ion is isoelectronic with the noble gas argon. This process can be broken into four steps: Example \(\PageIndex{1}\) : Chlorine Atoms, For Cl atoms, the electron configuration is 3s23p5. . a) Row 1 b) Row 2 c) Row 3 d) Row 4 26. All the elements belong to the n-2 n-1 n same period. The resulting ion will have a noble gas electron configuration and is said to be isoelectronic with that noble gas. The "Mg"^(2+) ion is formed when the neutral magnesium atom loses 2 electrons, which brings its total number of electrons to 10. Chloride is isoelectronic with argon. Which element has the highest first ionization potential: a. boron b. fluorine c. carbon 66. Cool. Identification Of Ions And Gases Teaching Resources | TPT 241 downloads 0 Views 318KB Size. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. Multiple Choice . 1 Lakshmi KrishnaKumar Studied at Kendriya Vidyalaya Ottapalam Author has 79 answers and 40.6K answer views 11 mo Related Answers: 3 Show answers Another question on Chemistry. Answer: (a) noble gas; (b) chalcogen; (c) alkaline earth metal; (d) alkali metal. In terms of energetics, it takes much less energy to lose two electrons than to gain 6. rb+1 is isoelectronic with which noble gas kinn's the administrative medical assistant, 14th edition pdf 1 listopada 2021 | 0 kinn's the administrative medical assistant, 14th edition pdf 1 listopada 2021 | 0 A typical question about isoelectronic series usually involve size comparisons. Predict the atomic radius for potassium, K, given the atomic radius of rubidium, Rb, (0.247 nm) and cesium, Cs, (0.265 nm). Diatomic oxygen, \(O_2\) is a good example of paramagnetism (that is best understood with molecular orbital theory). write the electron configuration for the following ion ru3+ Anything that is magnetic, like a bar magnet or a loop of electric current, has a magnetic moment. b) Calculate the wavelength (in nm). No noble gas is isoelectronic with the element chlorine . +1) Charge of the cations formed by Group II A: alkali earth metals (Be . The magnesium ion has an electron configuration like that of which noble gas? a) Na+ and K+ b) Cl- and F- c) Ca2+ and Mg2+ d) Al3+ and Ne e) P- and Ca+, Which of the following ions are isoelectronic with Ne? Are the ions Mn2+, Fe3+, and Co2+ isoelectronic? Electron Configurations, Noble gas abbreviations, identification of valence electrons, configurations for ionsThis lesson plan will teach your students how to write noble gas abbreviations, electron configurations for ions, and identify how many valence electrons there are in a particular configuration. Which noble gas is isoelectronic with the Cs+ ion? (b) N3- is isoelectronic with Ne. Course Hero is not sponsored or endorsed by any college or university. That is, we follow the three important rules: Aufbau's Principle, Pauli-exclusion principle, and Hund's Rule. D. ns2np3. C) Group 15 oxide compounds can form relatively strong acids upon reaction with water. Answer and Explanation: 1 Become a Study . Question 35. Electron Configurations of Ions - Chemistry Steps kyger funeral home in harrisonburg, va; meikakuna whiskey review What neutral atom is isoelectronic with the Ca2+ ion? Notice that the ion has a configuration with a complete shell of p orbitals which is characteristic of noble gases. Which of the following ions is not isoelectronic with the others? XI - STD (2M & 3M)-1 | PDF | Redox | Gases We add electrons to fill the outermost orbital that is occupied, and then add more electrons to the next higher orbital. houston art competitions 2022. profane objects examples; About. Is rubidum form the positive ion Rb plus is this ion larger or smaller than the neutral atom. (they are in the same period or it is the preceeding noble gas).Examples:Na+ and Mg2+ are both isoelectronic with Ne (element) and with each other. b. Rb c. K d. Cl e. Na ____ 10. the end of period 3, whereas an aluminum ion (Al3+) is ), Mg or Na (According to general trends in the periodic table, predict which element in each of the following pairs has greater metallic character. Electron Configuration K+ P3-Cl-Ca2+ Answers They are all the same 1s22s22p63s23p6 All isoelectronic with Argon Example 2: Circle all the ions below that are isoelectronic with neon: Isoelectronic Ions Law of physics published in 1783 Basically describes how opposites attract. Which noble gas element has an electron configuration identical to that of each of the following ions? Write the electron dot structures for the following elements: The greatest increase in ionization enthalpy is experienced on the removal of an electron from core noble gas configuration. 1. Completed Guided Notes - Unit VI: Chapters 6 and 7 Burdge Section 6 A. O2+ B. F- C. Mg2+ D. Li+, Which of the following is isoelectronic with P3-? The electron configurations of ions are isoelectronic with a Are the ions Cl- and Ca2+ isoelectronic? The electron configuration of a Ca2+ ion is: 1s2 2s2 2p6 3s2 3p6, which is isoelectronic with the noble gas argon. Will rubidium gain or lose? - sdnimik.bluejeanblues.net An (mono atomic) ion is called isoelectronic with another element (or ion) when it has the same number of electrons with it. As shown in Video 9.6.1, since molecular oxygen (\(O_2\) is paramagnetic, it is attracted to the magnet. Which isoelectronic ion is the smallest in size? This causes the magnetic fields of the electrons to cancel out; thus there is no net magnetic moment, and the atom cannot be attracted into a magnetic field. Q14 . Express your answers as chemical symbols separated by commas. Legal. (a) S3+(b) K+ (c) Ti4+(a) Ba2+ Sc3+ [Choose ] K+ [Choose) Ti4+ [Choose Ba2+ [ Choose No new data to save. CH 5 quiz. of electrons in Mg2+ is 10. Recommended PYQs (STRICTLY NCERT Based) Classification of Elements and Periodicity in Properties Chemistry Practice questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, NCERT Exemplar Questions and PDF Questions with answers, solutions, explanations, NCERT reference and difficulty level Quiz 12: Chemical Bonding | Quiz+ -> Rb+ is isoelectronic with Br- (36e-). Josh8t. E. ns2np7. Match each type of oxide to correctly with its acid-base behavior. The noble gas you will use will be located in period three. 5. a. Rb b. Xe c. Kr d. Rn, Which of the following ions is not isoelectronic with a noble gas? Therefore, its ground state electronic configuration can be written as 1s22s22p63s23p5. The ions that we are considering RSC two minus, S. R two plus, R. V. Plus and br minus. What is the SPDF configuration of calcium? = rA and rB are the rates of diffusion of A and B 9. Group 1 elements have a noble gas core plus 1 valence electron with an ns 1 configuration. Answer: Isoelectronic species are known as atoms or ions that have the same number of electrons. Video Transcript. Practice Exercise I was thinking Krypton because it is a noble gas and it is the closest to . They are notoriously unreactive because they have completely filled s and p sub-shells. "Bonding Basics" - WS #1 Directions: Please answer each fill in the blank with the best answer. Its administrative center is the city of Sofia, the capital of the country. The transition metals still do not end up being isoelectronic with a noblegas, but the loss of two electrons is still beneficial due to achieving a more stable energy state for the system. The electron configuration for Ca2+ is the same as that for Argon, which has 18 electrons. What are iso electronic noble gas? - Quora Which noble gas is isoelectronic with the Cs+ ion? a. Rb b. Xe c. Kr d -> Atoms are isoelectronic when they have the same electron configuration. The chloride ion (Cl-), on the other hand, has an additional electron for a total of 18 electrons. a. increasing atomic . Chemistry Electron Configuration Electron Configuration 1 Answer anor277 Oct 25, 2017 You are correct it would be isoelectronic with the Noble Gas, Xe . 2A B. Note that the poles of the magnets are aligned vertically and alternate (two with north facing up, and two with south facing up, diagonally). Calcium atoms will lose two electrons in order to achieve the noble gas configuration of argon. Pedro tiene hambre . Question: > Question 1 22. D) Halogens tend to have cleansing properties and their reactivity increases as one proceeds down the column. 0416 Fuel oil bunkering, Understanding test results. Yes, the "Mg"^(2+) ion and the neutral neon atom are isoelectronic, which implies that they have the same number of electrons and, of course, the same electron configuration. Li this is neutral and has 3 electrons and is not isoelectronic with neon. An electron has an electron magnetic dipole moment, generated by the electron's intrinsic spin property, making it an electric charge in motion. 1. a) B r . Identify another ion that is isoelectronic with P3-. Period 3 element whose 2 ion is isoelectronic with Ar (isoelectronic means they . (PDF) Materials for hydrogen-based energy storage - past, recent 1. Nonmetal oxides - are acidic. In studying the periodic table, you might have noticed something about the atomic masses of some of the elements. Which element forms a 3+ ion that has the electron configuration Kr 4d6? Indicate whether boron atoms are paramagnetic or diamagnetic. L ion electrons are added successively to the same subshell and do not fully screen each other from nuclear charge 10ns can be isoelectronic without having noble gas electron configuration a) . The electron configuration of a Ca2+ ion is: 1s2 2s2 2p6 3s2 3p6, which is isoelectronic with the noble gas argon. Therefore, atomic number of A=9 (halogen) and of C=11 (alkali metal).The electronic configuration of elements are: Groups:Element A belongs to Group 17 (Halogens).Element B belongs to Group 18 (Noble gases).Element C belongs to Group 11 (Alkali metals). (they are in the same period or it is the preceeding noble. b. increasing mass number. e. none of the above. Q: Write the full ground-state electron configuration for each: (a) S (b) Kr (c) Cs. a. Cr3+ b. Fe3+ c. Cu2+ d. S2- e. Zn2+. Cations are those with positive charge and always give electrons to other molecules. The general electron configuration for atoms of the halogen group is A) ns2np6 B) ns2np5 C) ns2np6(n -1)d7 D) ns1 E) ns2np7 Ans: B Category: Medium Section: 8.6 14. Group 1 elements have a noble gas core plus 1 valence electron with an ns 1 configuration. Why are they so important in chemistry? Thus, it has no unpaired electrons. a) Na+, K+, Rb+, Cs+ b) Mg2+, Ca2+, Sr2+, Ba2+ c) N, O, F, Ne d) F-, Cl-, Br-, I- e) N3-, O2-, Mg2+, Al3+. Zip. Report. -> Rb+ is isoelectronic with Br- (36e-). Give the electron configurations of these ions, and indicate which ones are isoelectronic. Krypton Krypton belongs to the noble gas family, i.e., group 18. 1. b. K^+. Q: Write the ground state electron configuration (shorthand ok) and draw orbital . Because they are all isil electronic that means they have the same number of electrons. c. increasing atomic mass. Welcome to CK-12 Foundation | CK-12 Foundation