Anion is larger than its neutral atom?

Question

Anion is larger than its neutral atom?

Answer 1

Anion has more negative electrons in its outer most orbit than that of its neutral atom and so strong enter electronic repulsion expads its size.

Answer 2

yes anion is larger because of more electronegativity...

the electron cloud around expends

thats why

it is larger in size

Answer 3

Due to stronger repulsion.

Answer 4

Hello!

Generally anions and atoms are of same size. Their sizes differ in few cases. For example, if an atom can accept extra electrons than how many vacancies it has, it will circulate the accepted electron in another next orbit (may be orbital). Due to increase in no. of orbits or orbitals, the anion i.e. negatively charged ion becomes larger in size than its original/atomic size.

Simply, ANION IS LARGER IN SIZE WHEN THEIR IS FILLING UP OF NEXT VACANT ORBITAL.

[Note: The above concept is different in case of Lanthancides and Actinides.]

Answer 5

IN TH CASE OF ANION, IT CONSISTS OF EXTRA ELECTON(S) WHEN COMPARED TO THAT OF ITS OWN NEUTRAL ATOM. SO THE ELECTRO STATIC FORCE OF ATTRACTION IS HIGHER IN NEUTRAL ATOM.

FROM EXAMPLE LET US CONSIDER A ATOM X

NO. OF ELECTRONS IN X = 11

NO. OF PROTONS IN X     = 11

BUT IN THE CASE OF ITS ONWN ANION X-

NO. OF ELECTRONS IN X = 12

NO. OF PROTONS IN X     = 11

U CAN NOTE THAT IN NEUTRAL ATOM 11 POSITIVE CHARGES (PROTONS) ATTRACTS 11 NEGATIVE CHARGES (ELECTRON).

BUT IN THE ANION  11 POSITIVE CHARGES (PROTONS) ATTRACTS 12 NEGATIVE CHARGES (ELECTRON).

SINCE THE FORCE OF ATTRACTION IS LESS THE RADIUS OF THE ANION WILL ALSO BE GREATER THAN THE NEUTRAL ATOM.

Answer 6

yes,because of decrease in force of attraction between nucleus and outermost electron.