Which example best illustrates that light behaves like particles? Light bends as it strikes a window.
Light bounces off a white cement sidewalk.
Light travels in space at a speed of about 3.0 x 108 m/s.
Light increases in speed as it moves through matter.

ASAP

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass