The element with highest ionisation potential is :

N a

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A r

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C l

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P

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Solution

The correct option is B $A r$
Ionization energy is the minimum energy needed to remove a mole of electrons from a mole of gaseous atoms. Ionization energy increases from left to right in a period and is highest for noble gases.

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Similar questions

Which element from the following has the highest ionisation energy ?

(a) P, Na, Cl (b) F, O, Ne (c) Ne, He, Ar

Explain your choice.

Which element has the highest ionization potential and which has the lowest ionization potential?

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