What is the fundamental difference in the electronic configurations between the group 1a and 2a elements ?
Answers
Answer:-
The fundamental difference in electronic configuration between group 1a and group 2a elements is that, group 1a elements have one valence electron whereas group 2a elements have two valence electrons.
General Properties of group 1a 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 2a 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.