Question

What is formed when atoms join together with a covalent bond?

Answer 1

Answer: B. a molecule

Explanation: Covalent bond is formed by the sharing of electrons between atoms.

$H_2$ is a molecule formed by the sharing of electrons between two hydrogen atoms.

An ion is formed by losing or gaining electrons.

$Na^+:10:[Ne]$

A neutral atom is one which contains equal number of protons and neutrons.

$Na:11:[Ne]3s^1$

A noble gas is one which contains completely filled orbitals.

$Ne:10:1s^22s^22p^6$

Answer 2

B) a molecule

A molecule is formed when two atoms join together with a covalent bond.