CH1012
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OXIDATION STATE RULES II
(ii)
The oxidation number of a free element ie. no atoms of a
different element, has an oxidation number of zero (e.g. O2, P4, S8).
(iii) For polar covalent molecules or ions,
we assign to the more electronegative
atom of a bond the total possession of the
electron pairs in the bond.
we assign to the more electronegative
atom of a bond the total possession of the
electron pairs in the bond.
H - F
2.1 4.0
Electronegativity is a number that
describes
the relative ability of an atom in a covalent
bond to attract shared electrons.
the relative ability of an atom in a covalent
bond to attract shared electrons.
