Question

In an atom, the first energy level can hold

Answer 1

Answer:

2, 8, 18

Explanation:

The number of orbitals for any level of interest n is calculated by a formula $o = n^2$. Since each orbital contains a maximum of 2 electrons, we can calculate the total number of electrons in an nth orbital by $e = 2n^2$.

• As a result, the first energy level for n = 1 can hold a maximum of $2n_1^2 = 2\cdot 1^2 = 2$ electrons,
• The second energy level can hold a maximum of $2n_2^2 = 2\cdot 2^2 = 8$ electrons,
• The third energy level can hold a maximum of $2n_3^2 = 2\cdot 3^2 = 18$ electrons.