Question

Group the following electron configurations in pairs that would represent similar chemical properties of their atoms.

Answer 1

\[a) 1s ^{2}2s ^{2}2p ^{6}3s ^{2}\]
\[b) 1s ^{2}2s ^{2}2p ^{3}\]
\[c) 1s ^{2}2s ^{2}2p ^{6}3s ^{2}3p ^{6}4s ^{2}3d ^{10}4p ^{6}\]
\[d) 1s ^{2}2s ^{2}\]
\[e) 1s ^{2}2s ^{2}2p ^{6}\]
\[f) 1s ^{2}2s ^{2}2p ^{6}3s ^{2}3p ^{3}\]