Question

Set of isoelectronic species is
(a) N₂ , CO₂ , CN , O₂ (b) N₂,H₂S,CO
(c) N₂ ,CO,CN⁻ ,O₂⁺² + (d) Ca,Mg,Cl

Answer 1

Answer:

Options B is correct

Explanation:

He'llo this is maanik follow me for more anwers .... Search Google for it....

Plzzzz support me.....

Answer 2

Answer:

N₂, CO, CN⁻ and O₂⁺² are isoelectronic species having 14 electrons.

Therefore, the option (c) is correct.

Explanation:

• The isoelectronic species are those which contain same number of electrons.
• For N₂, CO₂, CN, O₂:-

1.  N₂  contains electrons =7+7=14 electrons
2. CO₂  contains electrons  = 6+ 2(8)=6+16=22
3.  CN  contains electrons = 6+7=13
4.  O₂ contains electrons = 8 +8 =16

• For N₂, H₂S, CO :-

1. N₂  has electrons =7+7=14 electrons
2. H₂S contains electrons = 2 +16=18
3. CO  contains electrons  =6 + 8=14

• For N₂, CO, CN⁻ , O₂⁺² :-

1. N₂  has electrons =7+7=14
2. CO  contains electrons  =6 + 8=14
3. CN⁻  has electrons = 6+ 7 +1=14
4. O₂⁺²  has electrons =8+8-2 = 14

• For Ca, Mg, Cl :-

1. The number of electrons in Ca=20
2. Number of electrons in Mg =12
3. Number of electrons in Cl= 17

Therefore,  N₂, CO, CN⁻  and O₂⁺² are isoelectronic species.