Answer to Question #101239 in Chemistry for Martina Qepa

Question

For the energetic level named O, in the atom of an element named with X, find

The cuantic numbers (l,m,n)

The number of the orbitrals for l

The number of electrons that are in the level 3 and all the l numbers for this level?

Answer 1

i.)K refers to n=1

L refers to n=2

M refers to n=3

N refers to n=4

O refers to n=5

$l$ ranges from 0 to (n-1)

Hence for the above element X, $l$ ranges from 0 to 4

m ranges from -$l$ to +$l$ hence possible values of m are -4 to +4

ii.)number of orbitals = $2l+1$

iii.) The general formula is that the nth shell can in principle hold up to 2(n²) electrons.

so for n=3 number of electrons =2*3*3 = 18

$l$ ranges from 0 to (n-1)

hence for n=3 the values of $l$ are 0(s) , 1(p) , 2(d)