The elements H and S will form an ionic bond.

The statement is incorrect. Hydrogen (H) and Sulfur (S) do not form an ionic bond. They form a covalent bond.

Here's why:

1. Hydrogen is a non-metal. It has one electron in its outer shell and needs one more to complete its duplet.

2. Sulfur is also a non-metal. It has six electrons in its outer shell and needs two more to complete its octet.

3. In an ionic bond, one atom (usually a metal) donates one or more electrons to another atom (usually a non-metal). But here, both hydrogen and sulfur are non-metals.

4. Instead, hydrogen and sulfur share electrons to complete their outer shells. This is called a covalent bond.

5. Therefore, hydrogen and sulfur form a covalent bond, not an ionic bond.