Chemistry
Arrange the elements of second and third period in increasing order of ionisation energy.
Periodic Table
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Answer
Second Period : Li < Be < B < C < N < O < F < Ne.
Third Period : Na < Mg < Al < Si < P < S < Cl < Ar.
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Related Questions
State the trends in ionisatioin energy:
(a) across the period,
(b) down the group.
Name the elements with highest and lowest ionisation energies in first three periods.
Choose the correct answer from the given options given :
The element with highest ionization potential is :
- Hydrogen
- Caesium
- Radon
- Helium
Define the term 'electron affinity'. State its unit.