Question

what is the valency​

Answer 1

Answer:

In chemistry, the valence or valency of an element is a measure of its combining capacity with other atoms when it forms chemical compounds or molecules.

Answer 2

Answer:

Here's Your Answer

Explanation:

Valency is the combining power of an element. Elements in the same group of the periodic table have the same valency. The valency of an element is related to how many electrons are in the outer shell.

If the number of electrons in the outer shell is between one to four, the compound is said to have positive valency. For compounds with electrons four, five, six, or seven, the valency is determined by subtracting the electron from eight. All noble gases except for Helium have eight electrons.