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The valency of first four main group elements is equal to their group numbers but elements from Group 5 to 8 have two valencies one equal to group number and second is obtained by subtracting group number from 8.

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What is the valency of the smallest element?

the smallest element is hydrogen of which its valency is one.


How do you find valency?

The valency of an element measures its ability to combine with other elements. This valency is determined by the number of electrons in the outer shell of each atom of an element.


Which element has 4 and 6 valency?

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Sodium chloride is composed of sodium (Na) and chlorine (Cl). Sodium has a valency of +1, while chlorine has a valency of -1. In sodium chloride, sodium donates its electron to chlorine, forming an ionic bond with a valency of +1 for sodium and -1 for chlorine.


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