Introduction of Electrons, Orbitals and Suborbitals

Atoms are the building block of every matter.
Atom made up of electron, Protons and neutrons.
Electron always presents in orbitals.
these Orbitals then further divide in to sub orbitals which we call s,p,d,f suborbitals.
orbitals denote as K,L,M,N,O,P,Q
so when we want to say that electron is in 1st orbital we say like electron is in K orbital and represent it like n =1 (K orbital).