A) a charge of\[+1\]unit and a mass of one unit
B) no charge and a mass of one unit
C) no charge and no mass
D) a charge of\[-1\]unit and no mass
Correct Answer: B
Solution :
Neutron has no charge. It is a neutral particle having mass of one unit. It is represented by\[_{0}^{1}n\].It was discovered by James Chadwick.
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