What similarities and difference exist between electrons and neutrons? Consider charge, size, location and number.

Charge:

An electron has a negative charge and a neutron has a neutral charge.

Size:

Electrons have a really small mass whereas the neutron has a mass of about 1 amu.

Location:

Neutrons are found in center of an atom, but electrons are around it.

Number:

The number of electrons and neutrons in atom varies.