* Covalent Bonds: Form when atoms share electrons. These bonds typically occur between nonmetals.
* Ionic Bonds: Form when one atom (usually a metal) transfers electrons to another atom (usually a nonmetal).
Let's analyze each option:
* A. KF: Potassium (K) is a metal and Fluorine (F) is a nonmetal. This is an ionic compound.
* B. N2: Nitrogen (N) is a nonmetal. This is a covalent compound.
* C. CI4: Carbon (C) and Iodine (I) are both nonmetals. This is a covalent compound.
* D. HBr: Hydrogen (H) and Bromine (Br) are both nonmetals. This is a covalent compound.
* E. NO2: Nitrogen (N) and Oxygen (O) are both nonmetals. This is a covalent compound.
Therefore, the compound that does not contain covalent bonds is KF (Potassium Fluoride).
