From the following pairs of ions,which one is | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Iso-electronic species are those that have the same number of electrons.$O^{2-}$ has $8 + 2 = 10$ electrons; $F^{-}$ has $9 + 1 = 10$ electrons. (

Vedclass · Accepted Answer

$Fe^{2+}, Mn^{2+}$

Vedclass · Answer

(D) Iso-electronic species are those that have the same number of electrons.$O^{2-}$ has $8 + 2 = 10$ electrons; $F^{-}$ has $9 + 1 = 10$ electrons. (Iso-electronic)$Na^{+}$ has $11 - 1 = 10$ electrons; $Mg^{2+}$ has $12 - 2 = 10$ electrons. (Iso-electronic)$Mn^{2+}$ has $25 - 2 = 23$ electrons; $Fe^{3+}$ has $26 - 3 = 23$ electrons. (Iso-electronic)$Fe^{2+}$ has $26 - 2 = 24$ electrons; $Mn^{2+}$ has $25 - 2 = 23$ electrons. (Not iso-electronic)Therefore,the pair $Fe^{2+}, Mn^{2+}$ is not iso-electronic.

From the following pairs of ions,which one is not an iso-electronic pair?

Similar Questions

What are nucleons?

If $W$ is the atomic weight and $N$ is the atomic number of an element,then:

If the mass attributed to a neutron were halved and that attributed to the electron were doubled,the atomic mass of $_6C^{12}$ would

Two atoms of elements $X$ and $Y$ are isotones of each other. Their mass numbers are $70$ and $72$ respectively. If the atomic number of $X$ is $34$,then the atomic number of $Y$ is ..........

What is the number of nucleons present in an atom having $29$ electrons and $34$ neutrons in it?

Vedclass Test Series

Exam Paper Generator

Online Exam Module