An element has the electronic configuration $1s^2, 2s^2 2p^6, 3s^2 3p^2$. Its valence electrons are

The order of filling of electrons in the orbitals of an atom will be

The maximum number of electrons in a subshell of an atom is given by ...........

Total number of electrons in $Cu$ atom having $m_l = 0$.

"Pairing of electrons in the orbitals belonging to the same subshell does not occur unless each orbital belonging to that subshell has got one electron each." This statement is known as

What is the maximum number of electrons with the same spin that can be accommodated in a shell with principal quantum number $n$?