Question

5. Write the electronic configuration of the following atoms and the valency from the
arrangement of the electrons.
(a) Sodium
(b) Phosphorus (c) Sulphur
(d) Argon
(e) Zinc
(f) Krypton​

Answer 1

Answer:

sodium = 2,8,1. valency = 1

Answer 2

Answer:

1. ${1s}^{2} {2s}^{2} {2p}^{6} {3s}^{1}$
2. ${1s}^{2} {2s}^{2} {2p}^{6} {3s}^{2} {3p}^{3}$
3. ${1s}^{2} {2s}^{2} {2p}^{6} {3s}^{2} {3p}^{4}$
4. ${1s}^{2} {2s}^{2} {2p}^{6} {3s}^{2} {3p}^{6}$
5. ${1s}^{2} {2s}^{2} {2p}^{6} {3s}^{2} {3p}^{6} {4s}^{2} {3d}^{10}$
6. ${1s}^{2} {2s}^{2} {2p}^{6} {3s}^{2} {3p}^{6} {4s}^{2} {3d}^{10} {4p}^{6}$