The atomic number of a certain element is 17. Determine the number of electrons in each shell of the atom.
Thus:
(i) K shell has 2 electrons.
(ii) L shell has 8 electrons.
(iii) M shell has 7 electrons.
How many number of unpaired electrons are present in the ground state of Fe3+?(Atomic number of Fe is 26).
Arrange the following orbitals in order of increasing energy:3s, 2p, 4d, 3p, 5s
How many electrons are there in the valence quantum level of copper(Atomic, number = 29)?