Question

Select the INCORRECT statement.

Options

• The charge to mass ratio of electron is 1.75 × 10¹¹ C kg^–1.

• The mass of electron is 9.1 × 10^–34 kg.

• Neutron has slightly less mass than that of proton.

• Proton is 1837 times heavier than an electron.

Answer 1

Neutron has slightly less mass than that of proton.

Explanation:

Neutrons have somewhat more mass than protons, i.e.

Neutron = 1.674 × 10^–24 g (1.0087 amu)

Proton = 1.672 × 10^–24 g (1.0073 amu)