Question

Which two atoms form a covalent bond?

Answer 1

C. Two oxygen atoms

General Formulas and Concepts:

Types of Bonds

• Covalent Bonds - forms between 2 non-metals
• Ionic Bonds - forms between a non-metal and a metal
• Metallic Bonds - forms between 2 metals

Step-by-step explanation:

Any metal forming a compound with an non-metal is an ionic bond. Therefore, A and D are incorrect.

• Fe (Iron) is a Transition Metal forming an ionic bond with O (Oxygen), a non-metal.

• Na (Sodium) is a Alkali Metal forming an ionic bond with Cl (Chlorine), a non-metal.

Any 2 metals forming bonds with each other is a metallic bond. Therefore, B is incorrect.

• Na forms a metallic bond with Na.

Any 2 non-metals forming bonds with each other is a covalent bond. There are 2 types of covalent bonds: non-polar and polar.

• O forms a covalent bond with O.

Therefore, our answer is C.