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Hydrogen Bomb

The weak attraction between a hydrogen atom carrying a partial positive charge and some other atom with a partial negative charge.

Hydrogen bonds occur in polar compounds such as water by the attraction of a hydrogen atom of one molecule to two unshared electrons of another molecule.

Hydrogen bonds are less than one-tenth as strong as covalent bonds where electrons are actually shared by a pair of atoms, but they significantly affect properties such as the melting point, boiling point, and crystalline structure of substances.