[sammiegirl]

How many electrons in an atom can have the following quantum numbers:
n=2
1=1
m=0?



I know that this is definitely a possible combination so it's not a trick question, but I am really lost as to figure this information out.  I looked in my book and i found that Fluorine has these quantum numbers and has 9 electrons but that dosen't mean that it feels the orbitals completely.

Thanks!

[Borek]

How many quantum numbers do you know?

If the three given in question have known values, how many values can be assigned to these not given?

[FeLiXe]

think about the Pauli principle

[nate]

Ditto on the Pauli Exclusion principle.  How many electrons can live at the same address?

[asutoshsahu]

If n=2
l=1
m=0
then the electron belongs to 2p subshell
the p subshell has 3 orientation or 3 orbitals(3 m values i.e -1, 0, 1)
the capacity of p subshell is 6
so each orbital can have two electrons
hence for m=0 orientation the no. of electrons present in an atom is 2.