Answer:
sulfur (S) and oxygen (O)
Explanation:
Compounds are made of molecules. Molecules are formed when two similar or different atoms are bonded together. These bonds are formed either by transfer or by sharing of electrons.
<u>Chemical bonds that are formed by transfer of electrons are called ionic bonds. Bonds that are formed by sharing electrons are called covalent bonds. </u>
- Ionic bonding occurs between metals and non-metals, where a metal gives away its electron/s and non-metal accepts it.
- Covalent bonding occurs between non-metals. It could be between atoms of the same element or atoms of different elements. For example
- Cl - Cl (covalent bond between atoms of same element)
- N-O (covalent bond between atoms of different elements)
Now option A, B and D have a metal in each (Lithium, Aluminum, Iron). So, they will form ionic bond with their respective non-metal. Option C has both non-metals. Hence, they will share electrons and form covalent bond between themselves.
Therefore, the correct answer is C
