Question
The mass number of an atom is equal to the sum of protons and neutrons in the nucleus. A helium atom has 2 protons and 2 Neutrons. What js the mass number of this atom
Answers
GPT-4o mini
The mass number of an atom is calculated by adding the number of protons and neutrons together.
For a helium atom, which has 2 protons and 2 neutrons:
\[
\text{Mass number} = \text{Number of protons} + \text{Number of neutrons} = 2 + 2 = 4
\]
Therefore, the mass number of a helium atom is 4.
For a helium atom, which has 2 protons and 2 neutrons:
\[
\text{Mass number} = \text{Number of protons} + \text{Number of neutrons} = 2 + 2 = 4
\]
Therefore, the mass number of a helium atom is 4.