Question

What are the atomic number and atomic mass number of fluorine atoms with nine protons and ten neutrons

Answer 1

Atomic Number = 9

Mass Number = 19

Step-by-step explanation:

The atomic number is the total amount of protons in an atom's nucleus. Therefore, if a fluorine atom has 9 protons, the atomic number is 9.

The mass number is the total amount of protons and neutrons in an atom's nucleus. Therefore, if a fluorine atom has 9 protons and 10 neutrons, the mass number is 19 (9 + 10 = 19).