Identify the element having the electronic configuration $1s^2, 2s^2, 2p^2$.

Based on the quantum numbers, what will be the maximum number of elements in the sixth period of the periodic table?

Quantum numbers $l = 2$ and $m = 0$ represent which orbital?

The two electrons in the $K$ shell will differ in which of the following quantum numbers?

Which of the sequences given below shows the correct increasing order of energy?

Statement $1$: The energy of an electron is determined by the principal quantum number.
Statement $2$: The principal quantum number $(n)$ indicates the distance of the electron from the nucleus.