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Need Help With a Few Homework Problems!!!

Posted: Sun Oct 26, 2008 10:43 am
by shannamk06
:roll:

I am having a really hard time understanding the concept of isoelectronic. If anyone could help me that would be awesome!

NH4+ is isoelectronic with (NH3, NO3-, AlCl4-, AlCl3)

Al3+ is not isoelectronic with (Na, F, Ca2, Mg2)

TIA