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Question
Arrange the following in order of increasing ionisation energy:
Ne, He, Ar
Explain your choice.
Solution
Ne, He, and Ar belong to group 18, and He is at the top. As ionisation energy decreases in the group, He has the highest ionisation energy.
RELATED QUESTIONS
Arrange the following as per the instruction given in the brackets:
Na, Li, K (Increasing Ionisation Energy)
Define the term ‘ionisation potential`.
Choose the correct answer.
An element with highest ionization potential
(i) Calesium
(ii) Fluorine
(iii) Helium
(iv) Neon
State whether the ionization potential increases or decreases on going down a group.
Fill in the blank from the choices given below
Across a period, the ionisation potential ____________.
Give reason for the following:
Ionisation potential decreases down a group.
Arrange the following as per instruction given in the bracket.
Li, K, Na, H (decreasing order of their potential ionisation)
Arrange the following in order of increasing ionisation energy:
P, Na, Cl
Explain your choice.
Across a period, the ionization potential ______.
The element with highest ionisation potential is ______.
