HARDMCQ SINGLEJEE Advanced ChemistryInorganic ChemistryPeriodic PropertiesAchiever Section
An element with lowest ionization energy in their respective period is
A.chalcogen
B.halogen
C.alkali metals✓ Correct
D.inert gas
Explanation
Alkali metals will have the lowest ionization energy as ionization energy increases from left to right in a period in the periodic table, also the need to lose only 1 electron to attain noble gas configuration. Order of ionization energy: alkali metals < chalcogens < halogens < inert gas
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