what is valency? what is valency of cu ?
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The combining capacity of an atom is known as its valency. The number of bonds that an atom can form as part of a compound is expressed by the valency of the element.
Copper - Symbol - Cu.
It is a transition metal with variable valency.
Atomic number - 29
ELECTRONIC CONFIGURATION:
1S2 2S2 2P6 3S2 3P6 4S1 3d10
As d orbital electrons are tightly bound, so copper has variable valency.
IN CASE OF CUO: Cupric Oxide or Copper (II) oxide.
Copper valency is 2.
IN CASE OF Cu2O : cuprous Oxide or copper (I) Oxide
Copper valency is 1.
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Answer:
the capacity of an elements to combine with other elements is known as its valency .
Explanation:
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