Question

The atomic number of two elements x and y are 12 and 16 respectively.i) write electronic configuration of these elements.ii) state the valency of these two elements.

Answer 1

● Atomic number of X = 12
i) Hence, electronic configuration = 2,8,2
ii) Valency = +2

● Atomic number of Y = 16
i) Hence, electronic configuration = 2,8,6
ii) Valency = -2