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What is a chemical bond?
The force of attraction between atoms that holds them together in a molecule
What is an ionic bond?
Bond formed by transfer of electrons from metal to non-metal — electrostatic attraction. e.g. NaCl
What is a covalent bond?
Bond formed by sharing of electrons between two non-metal atoms. e.g. H₂, H₂O, CO₂
What is a coordinate bond?
A covalent bond where both electrons are donated by the same atom. e.g. NH₄⁺
What is electronegativity?
The tendency of an atom to attract electrons towards itself in a covalent bond
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