Which of the four quantum number (n, l, m_(l), m_(s)) determine (a) the energy of an electron in a hydrogen atom and in a many electron atom (b) the size of an orbital (c) the shape of an orbital (d) the orientation of an orbital in space ?

Which of the four quantum number (n, l, m_(l), m_(s)) determine (a) th

1.	Which of the four quantum number (n, l, m_(l), m_(s)) determine (a) the energy of an electron in a hydrogen atom and in a many electron atom (b) the size of an orbital (c) the shape of an orbital (d) the orientation of an orbital in space ?
Answer» SOLUTION :(a) Energy of ELECTRON in HYDROGEN atom is determined by n and in a many electron atom byn and l (B) SIZE of the orbital is determined by n (c) Shape of the orbital is determined by l (d) Orientation of the orbital is determined by `m_(l)`