Question

Neutron is a fundamental particle carrying

(a) a charge of +1 and a mass of 1 unit

(b) no charge and a mass of 1 unit

(c) no charge and no mass 

(d) a charge of - 1 and a mass of 1 unit

Answer 1

Correct option is (b) no charge and a mass of 1 unit

Proton and e^⊖ which are electrically charged, neutrons have no charge they are electrically neutral. The mass of a neutron is slightly greater than the mass of a proton,  which is 1 atomic mass unit (amu). (An atomic mass unit equals about 1.67 × 10⁻²⁷ Kgs.)