Question Text
Question 1 :
The valence electronic configuration of an element is $[Ne] 3s^1$. The element is :
Question 2 :
The energy of ground electronic state of hydrogen atom is $-13.4 eV$. The energy of the first excited state will be
Question 3 :
If a dipositive ion has an electronic configuration of 2, 8, then the number of electrons in that ion is:
Question 4 :
__________ have complete outer electron shells, which make them very stable.
Question 7 :
The electronic configuration ${ 1s }^{ 2 }{ 2s }^{ 2 }{ 2px }^{ 1 }{ 2py }^{ 1 }{ 2pz }^{ 1 }$ is of:
Question 10 :
With the increase in quantum number the energy difference between consecutive energy levels<br/>
