2
Question Question 2
Draw the geometrical atomic structure representing the electronic configuration of atoms of elements of :
- Period-2
- group 14 [IVA] — carbon [at no. 6]
- group 15 [VA] — nitrogen [at. no. 7]
- group 16 [VI A] — oxygen [at no. 8]
- Period-3
- group 1[IA] — sodium [at no. 11]
- group 2[IIA] — magnesium [at. no. 12]
- group 17[VIIA]— chlorine [at. no. 17]
- Period-4
- group 2[IIA] — calcium [at. no. 20].
Period-2
(i) Group 14 [IV A] — Carbon[at no. 6]
(ii) Group 15 [VA] — Nitrogen [at. no. 7]
(iii) Group 16 [VI A] — Oxygen [at no. 8]
Period-3
(i) Group 1[IA] — Sodium [at no. 11]
(ii) Group 2[IIA] — Magnesium [at. no. 12]
(iii) Group 17[VIIA] — Chlorine [at. no. 17]
Period-4
(i) group 2[IIA] — Calcium [at. no. 20].
