Question

what is the mass of a neutron?
1/2,000 amu
1 amu
2,000 amu
1/200 amu

Explanation:

The mass of a neutron is approximately 1 atomic mass unit (amu). This is a well - known value in atomic physics. Protons and neutrons have roughly the same mass, while electrons have a much smaller mass.

Answer:

1 amu