"Give the number of s, p, d, and f electrons in each of the following atoms."

for Iodine (Z=53), I have:

s= 8
p= 18
d= 20
f=7

all but "d" are incorrect. what am i doing wrong?

9/12/2007 5:41:13 PM

figured it out.

the diagonal rule.

9/12/2007 6:59:51 PM

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9/16/2007 7:12:37 PM