A)How can the valency of an element be determined if its electroniccon

1.	A)How can the valency of an element be determined if its electronicconfiguration is known ?
Answer» Answer: An element's valency is determined by the number of electrons in its outer shell. HENCE, the number of valence electrons obtained from the electronic configuration of the element gives the valency i.e. the number of electrons LOST, gained or shared by the element to attain the noble gas configuration. The valency of an element of atomic number 9 would be 1 since the number of valence electrons in its outermost shell is 7 so it needs only one electron to attain the noble gas configuration. Explanation:

A)How can the valency of an element be determined if its electronicconfiguration is known ?

Answer»

Answer:

An element's valency is determined by the number of electrons in its outer shell. HENCE, the number of valence electrons obtained from the electronic configuration of the element gives the valency i.e. the number of electrons LOST, gained or shared by the element to attain the noble gas configuration.

The valency of an element of atomic number 9 would be 1 since the number of valence electrons in its outermost shell is 7 so it needs only one electron to attain the noble gas configuration.

Explanation:

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