Question

what is the valency of an atom ? follow plz​

Answer 1

Answer:

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. ... V - beneath each symbol, write it's valency.

I HOPE IT'S HELPFUL TO YOU

Answer 2

Answer:

Valency is the capacity of an atom to bond with another atom or molecule. Valence electrons are the electrons of the outermost shell of an atom. The valence electrons participate in any chemical reaction.

Explanation:

The methods to find valency are as follows-

1. Octet rule-

The Bohr-buy scheme states that the outermost orbit of an atom can have a maximum eight electrons. The tendency of an atom to obtain eight electrons in its outermost orbit by gaining or losing electrons is called octet rule. The atom whose octet is complete is most stable. If the number of electrons in the outermost shell is 4 or less then the valency of the atom is equal to this number.

2. Using periodic table-

In periodic table elements are arranged in such a way that the valency of an atom can be easily determined on seeing periodic table charts. For example- all the alkali metals placed in I column have valency +1 , All the elements of column 17 which include the halogens have −1 valency. The elements of column 18 which are known as noble gas have zero valency and hence are inert gases

Hope this answer will help you.

Plz mark me as a Brainliest.