Define ionisation enthalpy. Discuss the factors affecting ionisation enthalpy of the elements
and its trends in the periodic table.
std 11 chemistry
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Answer:
The minimum amount of energy required to remove an electron from its gaseous atom to form an ion.
Explanation:
factors affecting ionization enthalpy:
a]atomic radius
b]nuclear charge
c]shielding effect
d]nature of orbital[s,p,d,f]
Trends in periodic table:
a]along group:decrease from top to bottom
b]across period:increase from left to right
anomalies in group trend:
a]III-A and II-A
b]V-A and VI-A
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