Correct graphical representation of 1st ionization energies (ΔiH) of Li, Be, B, C, N and O is Li, Be, B, C, N तथा O की प्रथम आयनन ऊर्जाओं (ΔiH) का सही ग्राफीय निरूपण है
The kinetic energy of an electron in the second Bohr orbit of a hydrogen atom is [a0 is Bohr radius]: