Question

Electronic configuration of all isotopes of same element is different.

• A. True
• B. False

Answer 1

The correct option is B False

(1)Isotopes are the atoms of the same element with the same atomic number but a different mass number due to the difference in the number of neutrons in their nucleus.

Example:Chlorine has two isotopes:-

(a)Chlorine 35(${\mathrm{Cl}}_{17}^{35}$)

(b)Chlorine 37(${\mathrm{Cl}}_{17}^{37}$)

(2)The isotopes of an element have the same chemical properties since they all have the same atomic number.

(3)Due to the same atomic number,all the isotopes of an element have the same electronic configuration.
Therefore,the given statement is false.