Question

1. which phrase describes the charge and mass of a neutron?

a) a charge of +1 and no mass
b) a charge of +1 and an approximate mass of 1 u
c) no charge and no mass
d) no charge and an approximate mass of 1 u

Explanation:

A neutron is a sub - atomic particle. By definition, it has no electrical charge (neutral). Its mass is approximately \(1\) atomic mass unit (\(u\)).

• Option A: Incorrect. Neutron has no charge and non - zero mass.
• Option B: Incorrect. Neutron has no charge.
• Option C: Incorrect. Neutron has non - zero mass.
• Option D: Correct. It correctly states that neutron has no charge and an approximate mass of \(1u\).

Answer:

D. no charge and an approximate mass of \(1u\)