What are the terms defined in (i) and (ii) below?
(i) A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair.
(ii) A bond formed by a shared pair of electrons with both electrons coming from the same atom.
(i) A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair. - Covalent bond
(ii) A bond formed by a shared pair of electrons with both electrons coming from the same atom. - Coordinate or dative bond