Question on: JAMB Chemistry - 2018
In electrovalency, the oxidation number of the participating metal is always
A
decreasing
B
increasing
C
constant
D
neutral
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Correct Option: C
In electrovalency (ionic bonding), a metal atom *loses* electrons to achieve a stable electronic configuration (octet rule). When an atom loses electrons, it undergoes oxidation. Oxidation is characterized by an *increase* in the oxidation number. Therefore, the oxidation number of the participating metal is always increasing.
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