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With which of the following electronic configuration an atom has the lowest ionisation enthalpy
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a
1s22s22p5
b
1s22s22p3
c
1s22s22p53s1
d
1s22s22p6
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Correct option is C
Amongst the given choices option {c) has a lowest ionization enthalpy because its electronic configuration represent the bigger size and we know that ionization enthalpy decrease with increase of no. of orbit.Talk to our academic expert!
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