Answer:
The chlorine atom will accept a lone pair of electron from another element in other to complete its outermost shell
Step-by-step explanation:
The chlorine atom will accept a lone pair of electron from another element in other to complete its outermost shell.
Chlorine being an unstable element will accept a lone pair of electron from another element like sodium to form a negatively charged ion(acceptor) thereby becoming stable. Sodium being the donor will easily donate its lone pair of electron to chlorine through covalent bonding thereby becoming the donor and forming a positively charged ion(Na+).
Note that for an element to be stable, such element may have a obey the duplet or octet rule I.e must possess 2 electrons or 8 electrons in its outermost shell.