Question

Write one difference between electronic configuration of group-1 and group-2​

Answer 1

Answer:

The fundamental difference in electronic configuration between group 1 and group 2 elements is that, group 1 elements have one valence electron whereas group 2 elements have two valence electrons.

General Properties of group 1 elements:

(i) They react with water vigorously to form strong alkali hydroxides.

(ii) They are soft, white metals and have low melting point.

(iii) Their compounds have high melting point and boiling point and are soluble in water.

General Properties of group 2 elements:

(i) Their oxides form mildly alkaline solutions.

(ii) They are grey in colour and are moderately hard.

(iii) Their compounds are generally colourless and mostly soluble in water. But their carbonates and phosphates are generally insoluble in water.

Explanation: