Question

1:- The alkali metal and their salts impart characteristics colour to oxidizing flame . why ?

2:- Beryllium does not exhibit coordination number more than 4. why?​

Answer 1

Answer:

1. Alkali metals impart characteristic colours to the flame due to low ionisation enthalpy, when an alkali metal or its salt is heated in a flame, the valence electrons are excited to higher energy level.

2. Beryllium does not exhibit coordination number more than four as it has four orbitals in the valence shell. The other members of this group has coordination number 6.

Explanation:

here's ur answer mate