Question

Which of the following are likely to form a covalent bond? aluminum and oxygen sulfur and oxygen magnesium and chlorine copper and copper

Answer 1

B. sulfur and oxygen

Answer 2

Firstly, covalent bonds are made between non-metals. In covalent bonding electrons get shared between elements in order to become stable. So you answer would therefore be sulfer and oxygen (which should form sulfer dioxide).

Hope it helps!