Question

The valency of an element is​

Answer 1

Answer:

In chemistry, the valence orvalency of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules. The concept ofvalence developed in the second half of the 19th century and helped successfully explain the molecular structure of inorganic and organic compounds

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Answer 2

Answer:

In chemistry, the valence orvalency of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules. The concept ofvalence developed in the second half of the 19th century and helped successfully explain the molecular structure of inorganic and organic compounds

The valency of an atom is equal to the number of electrons in the outer shell if that number is four or less. Otherwise, the valency is equal to eight minus the number of electrons in the outer shell. Once you know the number of electrons, you can easily calculate the valency.