Question

1. which is the correct electron - dot symbol for a boron atom in the ground state?

Explanation:

Boron (B) has an atomic number of 5. Its electron - configuration is 1s²2s²2p¹. In the electron - dot symbol, we represent the valence electrons. Boron has 3 valence electrons (2s²2p¹ electrons are the outer - shell or valence electrons). The electron - dot symbol shows the chemical symbol of the element surrounded by dots representing the valence electrons.

Answer:

The electron - dot symbol with the B symbol and 3 dots around it is the correct one. Without seeing the full options clearly, the correct option should be the one with the symbol 'B' and 3 dots around it.