The mass number of an atom is calculated by adding the number of protons and neutrons together. Therefore, the correct response is:
protons plus neutrons
Responses
protons plus neutrons
protons plus neutrons
total number of protons
total number of protons
total number of electrons
total number of electrons
electrons plus neutrons
1 answer
The mass number of an atom is calculated by adding the number of protons and neutrons together. Therefore, the correct response is:
protons plus neutrons