Answer:
1st energy level - 2 electrons
2nd energy level - 8 electrons
Explanation:
Maximum number of electrons that a main energy level can occupy depends on type and number of sub energy levels.
s orbital can occupy 2 electrons. p orbital can occupy maximum 6 electrons.
1st energy level has only a single s orbital, thus can have upto 2 electrons.
2nd energy level has a s orbital and a p orbital. 2 +6 = 8 electrons
