Science, asked by Akshat999, 1 year ago

Plz explain the reason for the trend of ionization potential down the group.

Attachments:

Answers

Answered by BrunoJai
4
ip decrease down the group as the atomic size increases


Akshat999: the question asked explain.....
BrunoJai: bro as atomic size increase the amout of energy reqiured to remove electron from the gaseous nucleus (def of I.P) so the nuclear charge decreases down the group so the energy to take out electron decreases
Answered by Anonymous
5
hey!!

here is ur answer!!
____________________________________

FIRST WHAT IS IONISATION POTENTIAL??

It is the amount of energy required to remove an electron from the outer most shell of an isolated gaseous atom..

for example : M ( atom) ----> M+ (ion ) + e- ( electron)

here,

M - e- -----> M+ [ here some amount of energy required for the electrons is the I. P]


FACTORS WHICH AFFECT THE I. P

1. Atomic size : Increases
ionisation potential : decreases

as A.S increases the nuclear attraction on the outer electrons decreases.
Hence th outer electrons are loosely held.........i. p decreases.

2. Nuclear charge increases :
Ionisation potential decreases

the nuclear charge increases ,,,,,,the nuclear attraction on the outer electrons increases
hence the outer electrons are firmly held that is i. p increases

ACROSS THE PERIOD FROM RIGHT TO LEFT...


ionisation potential increases.. as nuclear charge increases and atomic radii decreases..

Metals lose e- and generally have low i. p compared to non metals..


DOWN THE GROUP .........

atomic radii(no of shell) increases i. p decreases and nuclear charge always increases...
inc. in atomic radii dominates over the group..

_______________________________



Hope u understand !!!


Anonymous: is it helpful?
Akshat999: yeah.... very much
Similar questions