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Periodic Table question

2019 · Q51
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Periodic Table question

2019 · Q51

IIT JAMChemistryPeriodic TableNumerical+2 / −0
The ionization energy of hydrogen atom is 13.6 eV and the first ionization energy of sodium atom is 5.1 eV. The effective nuclear charge experienced by the valance electron of sodium atom is ‾\underline{\hspace{2cm}}​. (Round off to one decimal place)
Numerical answer
View written solutionFree

Correct answer: 1.7, 1.9

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