1
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1
Ionisation energy of H-atom is 13.6 eV. The wavelengths of the spectral line emitted when an electron in Be3+ comes them 5th energy level to 2nd energy level is
2
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1
If the quantum number I could have the value 'n' also then, Sc(21) would have electronic configuration as (other rules strictly followed)
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