LIFE SCIENCE

Detailed explanation-1: -The subatomic particle involved in chemical bonding is the electron. Electrons are the smallest of all subatomic particles and orbit the nucleus in discrete energy levels called shells. Electrons are negatively charged and the nucleus is positively charged due to the protons.

Detailed explanation-2: -An important principle to know is electrons may be transferred from one atom to another or even shared between atoms (allowing atoms to bind together). These bonds allow for the formation of molecules, combinations of atoms (including those of different elements).

Detailed explanation-3: -A typical atom consists of three subatomic particles: protons, neutrons, and electrons (as seen in the helium atom below).

Detailed explanation-4: -Electrons are negatively charged subatomic particles that are as negative as protons are positive. In general, atoms like to have the same number of electrons as they have protons in order to be electrically balanced.

Detailed explanation-5: -Electrons (especially valence electrons) are the only subatomic particles which are involved in ordinary chemical changes, and we have spent considerable time describing the rearrangements they undergo when atoms and molecules combine.