Noble gas molecules are held together by A Van der waals forcesB Hydrogen bondsC Dative bondsD Covalent bonds

Noble gas molecules are held together by Van der Waals forces. Here's why:

Noble gases are elements in the 18th group of the periodic table. They are known for their low reactivity due to having a full valence electron shell. This means they rarely form bonds with other elements.

A. Van der Waals forces: These are weak forces of attraction between molecules. They are the only forces that can exist between noble gas atoms because these gases are monatomic (consist of single atoms) and nonpolar (have a balanced distribution of electrical charge). So, the correct answer is A. Van der Waals forces.

B. Hydrogen bonds: These are specific types of dipole-dipole interactions that occur when a hydrogen atom is bonded to a highly electronegative atom (like nitrogen, oxygen, or fluorine). Noble gases do not form these bonds.

C. Dative bonds: These are a type of covalent bond where both electrons come from the same atom. Noble gases rarely form these bonds due to their full valence shell.

D. Covalent bonds: These are formed when two atoms share a pair of electrons. Noble gases rarely form these bonds because they already have a full valence shell.