Question -
Answer -
(a) K and S:
The electronicconfigurations of K and S are as follows:
K: 2, 8, 8, 1
S: 2, 8, 6
Sulphur (S) requires 2more electrons to complete its octet. Potassium (K) requires one electron morethan the nearest noble gas i.e., Argon. Hence, the electron transfer can beshown as:
(b) Ca and O:
The electronicconfigurations of Ca and O are as follows:
Ca: 2, 8, 8, 2
O: 2, 6
Oxygen requires twoelectrons more to complete its octet, whereas calcium has two electrons morethan the nearest noble gas i.e., Argon. Hence, the electron transfer takesplace as:
(c) Al and N:
The electronicconfigurations of Al and N are as follows:
Al: 2, 8, 3
N: 2, 5
Nitrogen is threeelectrons short of the nearest noble gas (Neon), whereas aluminium has threeelectrons more than Neon. Hence, the electron transference can be shown as:
