Question

6. Which element from the following has the highest
ionisation energy ?
(a) P. Na, CI (b) F, O, Ne (c) Ne, He, Ar
Explain your choice.​

Answer 1

Answer:

a) Chlorine

b) neon

c) helium

since ionisation potential increses from left to right in a period and decreases from top to bottom in a group

Answer 2

Answer:

(c ) Ne,He,Ar are highest