Question

Question
How is the mass number calculated for an atom involved in nuclear fusion?(1 point)
Responses

It is the number of protons plus electrons.
It is the number of protons plus electrons.

It is the number of neutrons.
It is the number of neutrons.

It is the number of protons plus neutrons.
It is the number of protons plus neutrons.

It is the number of electrons.

Answers

GPT-4o mini
The correct response is:

**It is the number of protons plus neutrons.**

The mass number of an atom is calculated by adding the number of protons and neutrons in the nucleus of the atom. Electrons do not contribute to the mass number.