Atomic Structure
The atomic number at which filling of a g-orbital is likely to begin is:
Which of the following electronic configurations has maximum energy ?
The order of increasing energy of the sub-atomic orbitals is s < p < d < f.
The energy in an excited state is more than that in the ground state.
In Option (a), two electrons are in the excited state, therefore, it has maximum energy.
The atomic number at which filling of a g-orbital is likely to begin is:
Which one of the following sequences with regard to the energy content of different orbitals, is correct?
What happens when both of the orbitals in a molecule are in phase, either both positive or both negative and the electrons in the bonds are at their lowest energy level?
Not considering the electronic spin, the degeneracy of the second excited state $$\left(n=3\right)$$ of $$H$$-atom is $$9$$, while the degeneracy of the second excited state of $${H}^{-}$$ is _______.
The electronic configuration, $$1s^22s^22p^63s^23p^63d^9$$, represents a:
The $$71^{st}$$ electron of an element $$X$$ with an atomic number of $$71$$ enters into the orbital:
If the principle quantum number n = 6, the correct sequence of filling of electron will be :
Using the Hund rules, write the spectral symbol of the basic term of the atom whose only partially filled subshell (a) is filled by $$1/3$$, and $$ S = 1$$; (b) is filled by $$70\%$$, and $$S = 3/2$$.
Match the atomic numbers among, $$4,8,10,15$$ and $$19$$ with An element with $$4$$ shells.
Match the atomic numbers, $$4,8,10,15$$ and $$19$$ with: Element which does not form ion.