Asked by tony

Which pair begins wtih the larger particle?
a)K+, K
b)N,N -3
c)Mg+2,Ca+2
d)F-,F
e)O-2,S-2
Answered by DrBob222
When electrons are pulled from the outside, the ion is SMALLER than the neutral atom.
When electrons are ADDED to the outside, the ion is LARGER than the atom. When comparing different ions, look at the position in the periodic table.
Answered by tony
oh, duh. thanks, drbob222
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