Question

Oxygen has an atomic number of 8. Which of the following could form the nucleus of an atom of oxygen?
6 protons and 8 neutrons.
4 protons and 4 neutrons. 6 protons and 2 neutrons. 8 protons and 10 neutrons.

Answer 1

Answer:

8 protons and 10 neutrons

Answer 2

Answer:

Answer: 8 protons and 8 neutrons

Explanation:

The mass number of oxygen is 16

Atomic number is 8

but proton number = atomic number = 8 protons

$neutrons = mass \: number - atomic \: number$

neutrons = 16 - 8 = 8 neutrons.