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Chem UNIT 1 AQA AS

how do you tell the difference between a covalent bonding and a dative bonding???

Covalent bond is when two atoms share a pair of electrons, i.e. CH4

Dative bond is when one atom donates a lone pair of electrons to another atom. I.e NH3 has a lone pair of electrons on the nitrogen. The lone pair is donated to a H+ ion. Forms NH4+

(edited 9 years ago)

Reply 2

Scienceisgood

Dative covalent bond = When one atom gives BOTH electrons in a covalent bond. I.e. ammonia. It has a lone pair of electrons on the nitrogen but a H+ ion can come along and make ammonium.

Whereas a covalent bond is when atoms in a molecule share one electron i.e. methane (carbon shares its 4 outer electrons with 4 hydrogen atoms).

Reply 3

Scienceisgood

Original post by Rickstahhh

Covalent bond is when two atoms share a pair of electrons, i.e. NaCl

Dative bond is when one atom donates a lone pair of electrons to another atom. I.e NH3 has a lone pair of electrons on the nitrogen. The lone pair is donated to a H+ ion. Forms NH4+