Periodic Properties And Variation Of Properties Physical And Chemical — Chemistry STD 10 — Question
ICSE BoardEnglish MediumSTD 10ChemistryPeriodic Properties And Variation Of Properties Physical And Chemical2 Marks
Question
What is meant by ionization potential?
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Answer
Ionization potential or ionization energy is defined as the energy to remove an electron from an isolated gaseous atom so as to convert it into a gaseous cation. The process may be representated as:
$M(g)+\text { Ionization energy } \rightarrow M^{+}(g)+e^{-}$
It is known as ionization potential since it is the minimum potential difference( in a discharge tube) required to remove an electron from an isolated gaseous atom to form a gaseous cation.
Units : Its units are electron volts ( $e ^{\text {V }}$ ) per atom. Its SI units are Kilojoules per mole $\left( Kjmol ^{-1}\right)$.
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