Q.
M(g)→M+(g)+e−,ΔH=100eV M(g)→M2+(g)+2e−,ΔH=250eV
Which is the incorrect statement?
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Classification of Elements and Periodicity in Properties
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Solution:
M(g)→M+(g)+e−,I1(M)=ΔH1=100eV
(a) is correct M+(g)→M2+(g)+e−,I2(M)=250−100=150eV
or I2(M+)=150eV (b) is correct I2 of M(g) is 150eV thus (c) is incorrect