Question

12. Atomic number of few elements are given as :10,18,7,14

(i)Identify the elements

(ii)Identify the group number of these elements in periodic table

(iii)Write the electronic configuration of these elements​

Answer 1

Answer:

(i)neon,argon,nitrogen, silicon respectively

(ii)neon 18 group, argon 18 group, nitrogen 15 group, silicon 14 group,

(iii) neon-1s²2s²2p⁶

argon-1s²2s²2p⁶3s²3p⁶

nitrogen-1s²2s²3p³

silicon-1s²2s²2p⁶3s²3p²