Question

type the number of each subatomic particle into the blanks: protons:? neutrons:? electrons:? 9 f fluorine 18.99

Explanation:

Step1: Recall atomic number property

The atomic number is equal to the number of protons. Fluorine has an atomic number of 9, so the number of protons is 9.

Step2: Calculate number of neutrons

The atomic mass is approximately 19 (rounded from 18.99). The number of neutrons = atomic mass - number of protons. So, 19 - 9=10.

Step3: Determine number of electrons

In a neutral atom, the number of electrons is equal to the number of protons. So, the number of electrons is 9.

Answer:

Protons: 9
Neutrons: 10
Electrons: 9