Which earth layer contains convection currents that are believed to be responsible for the movement of earth's tectonic plates?

Convection in the asthenosphere is the main reason for the movement of tectonic plates.

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