Question

how ro find the valency of a compound ?​

Answer 1

Find no of electron requires to fill outermost shell

Answer 2

Answer:

hey mate ❤✌

Explanation:

❤❤consult the periodic table of the

elements to determine the valency

of an element. The periodic table is

organised of groups in rows and

periods in columns , and the

elements of group Vlll have eight

electrons in th eir outer shells , and

thus have a valency or zero.

Elements in group 1 just have one

valence electron in its outer most

shell which means they are more

reactive.Elements of group 2 has a

valency of 2. Elements of 3rd group

elements have an valency of 3.

Elements of 4th group has an

valency of 2,4 it exhibits variable

valency . Elements of 5th group has

3,5 valency. Elements of 6th group

has 2,4,6. Exhibits variable valency

states . Elements of 7th group has

1,3,5,7. Elements of 8th group has

an valency of 2,4,6,8.

calculating the valency of an

element . Using the total number of

valency electrons.The number of

valency electrons are equal to the

no of outer most electrons in a

given element. if the valency if four

or less . other wise the valency is

equal to 8- group number.

calculating the valency of an multi

element molecules using the same

procedure.

for example to determine the

valency of the ionic compound

phosphorus tetroxide (PO4) , four

atoms of oxygen and one atom of

phosphorus) multiply the total

valency of the four oxygen atoms

and subtract that from the valency

of phosphorus atom That reveals

❤The valency of PO4 is 3.❤❣

❤ hope it helps You.❤

❤❤pls mark it as brainliest answer.❤❤❣

Thank you.❤❤❣❣