Which is most likely a covalent compound?

A :LiF
B :MgS
C :NH3
D :CaCl2

These are compounds that are composed of non-metal atoms when two non-metals reacts to form a covalent bond. This occurs as a result of sharing of electrons between non-metal atoms involved.

Ionic compounds are formed when a non-metal reacts with a non-metal to form an ionic bond. It occurs as a result of transfer of electrons where the metal atoms loses electrons and the non-metal atom gains electrons forming a cation and an anion respectively.

This is a type of bond that is formed between non-metal atoms. It is formed as a result of sharing electrons between non-metal atoms involved.
When atoms involved contribute equal number of electrons to the bond formation, the type of bond is known as covalent bond. Like in this case, the atom with four outer most electrons may share its electrons with two oxygen atoms to form a compound with a double covalent bond.
However, when the shared electrons come from one atom then the bond is known as dative covalent bond.

This is a type of bond that occurs between metal ions and non-metal ions. Ionic bond occurs as a result of transfer of electrons from one metal atom to another non-metal atom.
After the transfer of electrons, metal atom loses electron to form a cation while the non-metal atom gains electrons to form an anion.

Other types of chemical bonds include;

Keywords: Covalent compound, covalent bond

Level: High school

Subject: Chemistry

Topic: structure and bonding

Sub-topic: Covalent structures

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