How many dots belong in the electron dot diagram of a boron (b) atom?

There are three dots in the Lewis dot diagram of boron atom.

Explanation:

Boron is a chemical element that belongs to the group 13 and period 2 of the periodic table. It is a p-block element having atomic number 5.

The ground state electronic configuration of boron is 1s² 2s² 2p¹. So, in the ground state, the boron atom has 3 valence electrons in the valence shell.

The Lewis dot structure represents the number of valence electrons of an atom by dots.

Therefore, there are three dots in the Lewis dot diagram of boron atom.