Question

a neutral atom of which element contains 10 electrons?
a. boron
b. fluorine
c. lithium
d. neon

Explanation:

Step1: Recall atomic number = electron number in neutral atom

In a neutral atom, the number of electrons equals the atomic number.

Step2: Identify element with atomic number 10

Neon has an atomic number of 10.

Answer:

D. neon