What is meant by valency ? What is the relation between valency and electronic structure ? Explain it
GSEB - Class 9 Chapter - 5.Structure of Atom Page 66
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it is defined as the combing capacity of an element to form a compound.
the no. of electron present in the outermost shell of an element determines yhe valency of an element.
eg . valency of sodium is 1 as it contain 1 electron in its outermost shell
the no. of electron present in the outermost shell of an element determines yhe valency of an element.
eg . valency of sodium is 1 as it contain 1 electron in its outermost shell
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Valency is the no. of electrons needed to be gained or donated to complete the octet of an atom.
Depending on the number of electrons in the outermost shell, the valency changes.
Eg. Chlorine has a configuration of 2,8,7 hence it needs 1 electron to complete its octet.
Hence its valency is -1.
Depending on the number of electrons in the outermost shell, the valency changes.
Eg. Chlorine has a configuration of 2,8,7 hence it needs 1 electron to complete its octet.
Hence its valency is -1.
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