Chemistry - PERIODIC TABLE Question with Solution | TestHub
ChemistryPERIODIC TABLEIonisation Energy,Easy2 minPYQ_2020
ChemistryEasysingle choice
The first ionization energy (in) ofandrespectively are:
Options:
Answer:
A
Solution:
Correct order of ionisation energy will be : Na < Al < Mg < Si.
On going from left to right in periodic table effective nuclear charge increases due to which ionisation energy increases. But there is exception in order of Al and Mg, in case of Mg electron is removed from fulfilled 's' subshell due to which it has higher I.E.
Stream:JEESubject:ChemistryTopic:PERIODIC TABLESubtopic:Ionisation Energy,
⏱ 2mℹ️ Source: PYQ_2020
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