Question

chemical equations quick check
how many electrons does hydrogen have in its valence shell when it is full? (1 point)
two
eight
seven
one

Explanation:

Hydrogen has its valence electrons in the first energy level. The first energy level (n = 1) has only an s - orbital (\(1s\)). The maximum number of electrons that an s - orbital can hold is 2. So, when hydrogen's valence shell (first shell) is full, it has 2 electrons.

Answer:

two