In the category of covalent bonds, there are polar and non-polar covalent bonds. In some covalent bonds, electrons are shared unequally, resulting in the partial charge of one atom and the opposite charge of the other atom(s). This occurs when one atom in the compound has a higher electronegativity, or affinity to electrons.
But because both atoms in the molecule H2 have the same electronegativity (as atoms of the same element), electrons are shared more or less equally, resulting in a non-polar covalent bond.
Hydrogen Bond
A hydrogen bond.
peptide bond hydrogen bond
Hydrogen Bond
which is not a type of chemical bond, covalent, electron, ionic, or hydrogen
Hydrogen Bond
hydrogen bond.
Hydrogen Bond
hydrogen bond.
A hydrogen bond.
hydrogen bond
Hydrogen form a covalent bond with carbon.
peptide bond hydrogen bond
A hydrogen bond is a very strong dipole-dipole bond. A hydrogen bond can only form between hydrogen and a strong electromagnetic atom; fluorine, oxygen or chlorine.
a hydrogen bond
Hydrogen Bond
A hydrogen bond--two between A and T and three between G and C.