Question

The atomic numbers of five elements A, B C,D and E are 10, 11, 12, 18 and 23 respectively. (c) Mention the blocks of each element.

Answer 1

Answer:10 block

11 s block

12 s block

18 p block

23 d block

Explanation:

Answer 2

Explanation:

you can determine the block by electronic configuration it means that last e enters to which subshell

A - 1s2 2s2 2p6 - belongs to p block

B - 1s2 2s2 2p6 3s1 - belongs to s block

C - 1s2 2s2 2p6 3s1 - belongs to s block

D - 1s2 2s2 2p6 3s2 3p6 belongs to p block

E - 1s2 2s2 2p6 3s2 3p6 4s2 3d3 - belong to d block

hope that it helps u