Which components of atoms has no charge

The answer is "neutrons." Neutrons have no charge although they are one of the main components to a atom. When the nucleus of the atom forms two  particles are formed with it and these are called protons, and neutrons. Remember that a proton has a negative charge, and a neutron has no charge.

Hope this helps!

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

→