Question: Which of the following sets of ions are isoelectronic? Check all that apply. Check all that apply. (Li+,Be2+,H−) (O2−,S2−,Se2−)( Na+,Mg2+,Al3+)This problem has been solved! Show
Which of the following sets of ions are isoelectronic? Check all that apply. Check all that apply. (Li+,Be2+,H−) (O2−,S2−,Se2−)( Na+,Mg2+,Al3+) Expert Answer Who are the experts?Experts are tested by Chegg as specialists in their subject area. We review their content and use your feedback to keep the quality high.100% (1 rating) Set 1: Number of electron in Li = 3 So, Li+ has 2 electrons Number of electron in Be = 4 So, Be2+ has 2 electrons Number… `Zn^(2+) , Ca^(2+) , Ga^(3+) ,A1^(3+)` `K^(+) ,Ca^(2+) Sc^(3+) ,C1^(-)``P^(3-) , S^(2-), C1^(-) , K^(+)``Ti^(4+) , Ar, Cr^(3+) ,V^(5+)` Answer : B::C Solution : Species of set (a)i.e., `Zn^(2+) (30-2 = 28 ) , Ca^(2+) (20 -2=18) , Ga^(3+) (31-3 = 28) , A1^(3+) (13 -3=10)` <br> have different no of electron and hence are not isoelectronic ions. <br> Species of set ( b) i.e., `K^(+) (19-1=18) ,Ca^(2+) (20-2 =18) , Sc^(3+) (21-3=18) ,C1^(-) (17+1=18) `are all isoelectron ions since each one of them has 18 electrons. <br> Species of set (c ) i.e., `P^(3-) (15+3 =18) ,S^(2-) (16+2 =18) ,C1^(-) (17+ 1=18) , K^(+) (19-1=18) ` are all isoelectron ions since each one of them has 18 electrons . <br> Species of set (d) i.e., `Ti^(4+) (22 -4 =18) ,Ar (18), Cr^(3+) (24-3=21) ,V^(5+) (23 -5= 18)` have different number of electron and hence are not isoelectronic ions. `K^(+),Cl^(-),Mg^(2+),Sc^(3+)``Na^(+),Ca^(2+),SC^(3+),F^(-)``K^(+),Ca^(2+),Sc^(3+),Cl^(-)``Na^(+), Mg^(2+),Al^(3+), Cl^(-)` Answer : C Solution : Iso- electronic species are those which have same number of electrons `K^(+), Ca^(2+), Sc^(3+)` and `Cl^(-)` have 18 electrons each. `K^(+) ,C1^(-) ,Mg^(2+) , Sc^(3+)``Na^(+) , Ca^(2+) , Sc^(3+) , F^(-)``K^(+) , Ca^(2+) , Sc^(3+) , C1^(-)``Na^(+) , Mg^(2+) ,A1^(3+) ,C1^(-)` Answer : C Solution : `K^(+) (19 - 1= 18 ) . C1^(-) (17 + 1= 18) .` <br> `Ca^(2+) (20- 2 =18) , Sc^(3+) (21 = 3=18)` represent a collection of isoelectronic species. Which of the following sets represents the collection of isoelectronic species?(a)- $N{{a}^{+}},M{{g}^{2+}}A{{l}^{3+}},C{{l}^{-}}$ (b)- $N{{a}^{+}},C{{a}^{2+}}S{{c}^{3+}},{{F}^{-}}$ (c)- ${{K}^{+}},C{{l}^{-}},C{{a}^{2+}}S{{c}^{3+}}$ (d)- ${{K}^{+}},C{{a}^{2+}},S{{c}^{3+}},{{F}^{-}}$Answer Verified Hint: Isoelectronic species have the same number of electrons. : In isoelectronic species, as the nuclear charge increases, the force of attraction by the nucleus on the electrons also increases. Complete answer: (b)- $N{{a}^{+}},C{{a}^{2+}}S{{c}^{3+}},{{F}^{-}}$ (c)- ${{K}^{+}},C{{l}^{-}},C{{a}^{2+}}S{{c}^{3+}}$ (d)- ${{K}^{+}},C{{a}^{2+}},S{{c}^{3+}},{{F}^{-}}$
Note: The nuclear charge is calculated by the number of electrons + charge on the ion. Which set of ions is isoelectronic?N−3,O−2,F− and Na+ are isoelectronic.
Which of the following ions are isoelectronic in nature CL S2 CA fe2+?Ar,S2−,Ca2+andK+ are isoelectronic species. They contain 18 electrons each. Was this answer helpful?
Which of the following sets show isoelectric species?Complete answer:
Besides ions, a neutral atom may also the same number of electrons hence it is also isoelectronic species. Example, sulphide ion (${{S}^{2-}}$ ), chloride ion ($C{{l}^{-}}$), argon (Ar), and potassium ion (${{K}^{+}}$ ) are isoelectronic species.
What is isoelectronic ions give example?Isoelectronic species are elements or ions that have the same or equal number of electrons. Example: Na+, F− (ions both have 10 electrons) Was this answer helpful?
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