which element has the highest ionisation potential. - Chemistry

which element has the highest ionisation potential.

One Line Answer

The element which has the highest ionisation potential is helium (He).

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Chapter 1: Periodic Properties And Variation Of Properties: Physical And Chemical - Exercise 8 [Page 23]

Chapter 1 Periodic Properties And Variation Of Properties: Physical And Chemical
Exercise 8 | Q 4 | Page 23

State the trends in ionization energy across the period.

Give reason for the following:

Ionisation potential of the element increases across a period.

Which element from the following has the highest ionization energy?
Explain your choice.

F, O, Ne

Li, K, Na, H (In the decreasing order of their ionization potential)

In a group, a particular element has the lowest ionization potential; does it ionize most easily or least easily? Explain with example.

Fill in the blank from the choices given below
Across a period, the ionisation potential ____________.

Choose the correct answer from the choice given:
Ionisation potential increases over a period from left to right because the

Arrange the following as per instruction given in the bracket.
Na, K, Cl, S, Si (increasing ionisation potential)

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.