SSC MTS EXAM

Detailed explanation-1: -Electrons have a negative charge that is equal in magnitude to the positive charge of the protons. However, their mass is considerably less than that of a proton or neutron (and as such is usually considered insignificant). Unequal amounts of protons and electrons create ions: positive cations or negative anions.

Detailed explanation-2: -Atoms contain negatively charged electrons and positively charged protons; the number of each determines the atom’s net charge.

Detailed explanation-3: -Unlike protons and neutrons, which are located inside the nucleus at the center of the atom, electrons are found outside the nucleus. Because opposite electric charges attract one another, negative electrons are attracted to the positive nucleus.