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Both Br and Br and H and H form non-polar covalent bonds.
sulfur and oxygen.
Polar covaent bonds are formed when there is a difference in electronegativity between the atoms. Elements such as hlogens, (F, Cl, Br, I) oxygen, nitrogen are quite electronegative, elements which are less electronegative that form covalent bonds include some metals, phosphorus, hydrogen, carbon -- check out the electronegativity table.
The form of chemical bonding that is characterized by the sharing of pairs of electrons between atoms is a Covalent Bond.
covalent bonds
Both Br and Br and H and H form non-polar covalent bonds.
sulfur and oxygen.
Polar covaent bonds are formed when there is a difference in electronegativity between the atoms. Elements such as hlogens, (F, Cl, Br, I) oxygen, nitrogen are quite electronegative, elements which are less electronegative that form covalent bonds include some metals, phosphorus, hydrogen, carbon -- check out the electronegativity table.
Covalent bonds, (single, double, triple)
The form of chemical bonding that is characterized by the sharing of pairs of electrons between atoms is a Covalent Bond.
None.
covalent bonds
In covalent bonds, electrons are shared. In ionic bonds, electrons are transferred.
Nonpolar covalent bonds: 1) exist between two elements that share electrons, unlike ionic bonds 2) are when atoms are shared equally between the two atoms
The short answer, without too much research or effort on my part, is that hydrogen bonds are weaker. The are due to the attraction of hydrogen to other elements (such as oxygen) that have lone pairs swimming around. Covalent bonds are due to electronic effects, and as such are stronger.
Case A - Covalent bonds: Single covalent chemical bonds result from the sharing of a pair of electrons. Double covalent atomic chemical bonds result from the sharing of two pairs of electrons, and triple covalent bonds occur when three pairs of electrons are involved. Case B - Hydrogen bonding and Van-der Wal's Forces.
A covalent bond occurs when atoms share electrons.