what is the correct definition of mole?

Two common types of ratios we'll see are part to part and part to whole.

in chemistry, the interatomic linkage that results from the sharing of an electron pair between two atoms.

any of a group of rare gases that include helium, neon, argon, krypton, xenon, and usually radon and that exhibit great stability and extremely low reaction rates

bond is formed by head-on positive (same phase) overlap of atomic orbitals along the internuclear axis.

The shared pair of electrons is shown as two dots in between the two H symbols (H:H).

between two atoms determines how polar a bond will be.

An acid is a molecule or ion capable of either donating a proton,

type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.

force that holds atoms together in a metallic substance.

the tendency of atoms to prefer to have eight electrons in the valence shell.

arises from complete transfer of one or more electrons from one atom to another;

A stable arrangement is attended when the atom is surrounded by eight electrons

of the standard periodic table and encompasses elements in groups 13 to 18.

, the number of valence electrons is equal to the atom's main group number.

is defined as the number of times an event occurs per unit of time.

the process by which an unstable atomic nucleus loses energy by radiation.

distinct nuclear species (or nuclides, as technical term) of the same chemical element.

the scientific theory that matter is composed of particles called atoms.