Question

what is SPDF cell and how many cell does each contains?

Answer 1

spdf are the orbitals

Answer 2

Shells can be divided into sub shells.There are four different types of subshells. These various types of subshells are denoted by the letters s, p, d, and f. Each subshell has a maximum number of electrons which it can hold: s - 2 electrons, p - 6 electrons, d - 10 electrons, and f - 14 electrons.