In the following table, the mass number and the atomic number of certain elements are given: (a) Select a pair of isobars from the above table. (b) What would be the valency of element ‘B’ listed in the above table?

Question

Philoid · Accepted Answer

a. Elements D and E are isobars as they have a same mass number but a different atomic number.

b. The atomic number of element B is 3. So its electronic configuration is 2, 1. Hence its valency is 1 as it has only 1 valence electron.

In the following table, the mass number and the atomic number of certain elements are given:(a) Select a pair of isobars from the above table.(b) What would be the valency of element ‘B’ listed in the above table?

In the following table, the mass number and the atomic number of certain elements are given:

(a) Select a pair of isobars from the above table.

(b) What would be the valency of element ‘B’ listed in the above table?