Question
What is the mass number of 2 protons, 2 electrons, and 1 neutron?
Answers
Answered by
GPT-4o mini
The mass number of an isotope is defined as the total number of protons and neutrons in its nucleus. In the case you provided:
- Protons = 2
- Neutrons = 1
- Electrons do not contribute to the mass number.
So you add the number of protons and neutrons together:
Mass number = Protons + Neutrons = 2 + 1 = 3.
Therefore, the mass number is 3.
- Protons = 2
- Neutrons = 1
- Electrons do not contribute to the mass number.
So you add the number of protons and neutrons together:
Mass number = Protons + Neutrons = 2 + 1 = 3.
Therefore, the mass number is 3.