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3 answers

Level 1 can only be s
2 is s and p
3 is s, p and d
4 is s, p, d and f

So, 1p, 3f and 2d are impossible.

2006-10-29 05:52:20 · answer #1 · answered by JJ 7 · 1 0

1---s; 2---s,p; 3---s,p,d;4----s,p,d,f

SO---- 1p, 3f, and 2d are non-existent

2006-10-29 17:55:17 · answer #2 · answered by Baby #1 born August 2009 6 · 0 0

1--s
2--s,p
3--s,p,d
4--s,p,d,f
ect.
so 1p, 3f, and 2d do not exist.

2006-10-29 14:00:49 · answer #3 · answered by quepie 6 · 0 0

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