Question

b. What is meant by valency of an element?
What is the relationship between the
number of valence electron and valency?
please tell me fast​

Answer 1

Answer:

valency is the number of electrons present in the outermost orbit is known as the valency and the electron present is known as valence electron.

Answer 2

Answer:

vαℓєทcy σƒ αท єℓємєทτ : iτ is τнє ทυмвєr σƒ єℓєcτrσทs σƒ αท ατσм σƒ τнє єℓємєทτ υsєs τσ cσмвiทє ωiτн ατσмs σƒ στнєr єℓємєทτs.

iτ is τнє cσмвiทiทg ρσωєr σƒ αท ατσм σƒ τнє єℓємєทτ.

vαℓєทcy σƒ αท ατσм is ∂єτєrмiทє∂ вy iτs єℓєcτrσทic cσทƒigυrατiσท.

iτ givєs i∂єα αвσυτ τнє ทυмвєr σƒ єℓєcτrσทs ℓσss σr gαiท iท σr∂єr τσ αcнiєvє τнє ทєαrєsτ ทσвℓє gαs cσทƒigυrατiσท.

ƒσr єxαмρℓє: ทα(11) = 2,8,1 sσ, iτs vαℓєทcy is 1

cℓ(17) = 2,8,7 sσ, iτs vαℓєทcy is αℓsσ 1

ทυмвєr σƒ vαℓєทcє єℓєcτrσท : iτ is ∂єƒiทє∂ αs τнє ทυмвєr σƒ єℓєcτrσทs ρrєsєทτ iท τнє συτєrмσsτ sнєℓℓ σƒ αท ατσм.

iτ is ทστ ทєcєssαry τнατ αℓℓ τнє vαℓєทcє єℓєcτrσทs ταкє ραrτ iท вσท∂iทg.

ƒσr єxαмρℓє: ทα(11) = 2,8,1 sσ, iτs ทυмвєr σƒ vαℓєทcє єℓєcτrσท is 1

cℓ(17) = 2,8,7 sσ iτs ทυмвєr σƒ vαℓєทcє єℓєcτrσท is 7

iτ cαท вє sєєท τнατ vαℓєทcy σƒ αท єℓємєทτ is rєℓατє∂ τσ ทυмвєr σƒ vαℓєทcє єℓєcτrσทs iท τнατ ατσм.