Question

What is the meaning of ion ? What is a covalent bond ?

Answer 1

So there are 3 subatomic particles: protons (positive charge), electron (negative charge), and neutron (neutral charge).

An ion is basically any element that has lost or gained electrons in its outermost shell to make itself stable, with 8 electrons in its outer shell (with a few exceptions). E.g the oxygen atom has an outer shell of 6 so to become stable it will need to pick up 2 electrons. As it does this it becomes a negatively charged ion, known as an anion.

A positively charged ion is known as a cation (you can remember this by it being ‘paw-sitive’, like a cat). Eg the calcium atom has an outer shell of 2 and to become stable it will remove 2 electrons, making it positively charged.

A covalent bond is 2 or more ions who chemically bond together by sharing an extra electron/s between them so they each become stable.

Answer 2

• an atom or molecule with a net electric charge due to the loss or gain of one or more electrons

• A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding. #answerwithquality #BAL