College Chemistry Question

Question

10. Write how many electrons each of the following can accept at the most:

subshell 2s: ___ shell 1: ___ one 4f orbital: ___ subshell 5p: ___

11. For an atom of 13Al, write its full electron configuration: 1s_

Draw a full orbital diagram (e¯s as arrows in boxes with labels):

Count the unpaired e¯s in the orbital diagram _____

Is 13Al atom diamagnetic or paramagnetic? (mark one)

Write four quantum numbers n, l, ml, ms for all its valence electrons:

Answer 1

subshell 2s: _2__ shell 1: _2__ one 4f orbital: __2_ subshell 5p: _6__

11. For an atom of 13Al, write its full electron configuration: 1s_

Draw a full orbital diagram (e¯s as arrows in boxes with labels):

Count the unpaired e¯s in the orbital diagram __1___

Is 13Al atom diamagnetic or paramagnetic? (mark one) paramagnetic (unpaired electron)

Write four quantum numbers n, l, ml, ms for all its valence electrons:

1s2 2s2 2p6 3s2 3p1

↑↓ ↑↓ ↑↓↑↓↑↓ ↑↓ ↑

for 3s2: n=3, l=0, ml = 0, ms = +1/2 -1/2

for 3p1 n=3, l=1, ml=1,0,-1, ms = +1/2