Question

Which statement about subatomic particles is true?

Protons are the only subatomic particles to have charge.

Electrons are the subatomic particles with the smallest mass.

Neutrons orbit the nucleus of the atom.

Subatomic particles all have the same mass.

Answer 1

Electrons are the subatomic particles with the smallest mass.

Answer 2

Electrons have negative charge, so protons are not the only subatomic particles to have charge
Neutrons are IN the nucleus of the atom, therefore it can't revolve around itself
Neutrons and protons have about 1835 times more mass than an electron

This should help.