Question

What is the type of chemical bond is present in a calcium fluoride molecule?

• A. Ionic bond
• B. Covalent bond
• C. Co-ordinate bond
• D. Hydrogen bond

Answer 1

The correct option is A

Ionic bond

Calcium Fluoride has the chemical formula - $Ca{F}_2$, where calcium has two electrons in its valence shell whereas each fluorine needs one electron extra to complete its octet. Hence, two electrons in calcium atom are drawn towards the fluorine molecules each forming an ionic bond.

A co-ordinate bond is a covalent bond (formed by sharing pair of electrons) in which both electrons come from the same atom.

A hydrogen bond is an attraction between two atoms that already participate in other chemical bonds. One of those atoms is hydrogen, while the other may be any electronegative atom, such as oxygen, chlorine, or fluorine.