Physical Science Unlocking of Terms

It is a measure of the tendency of an atom to attract a bonding pair of electrons.

• electron

• electronegativity

• negative

• positive

These are the electrons in the outermost shell, or energy level, of an atom.

• valence electrons

• hot electrons

• vacancy electrons

It occurs due to the unequal sharing of electrons between atoms in a molecule.

• dispersion

• dipole

• electronegativity

The type of bonding that occurs when pairs of electrons are shared by atoms.

• ionic

• covalent

• hydrogen

A property of molecules in which one or more atoms possess either a partial positive or a partial negative charge.

• polarity

• molarity

• bonding