Homework Help: physics

Posted by may on Sunday, October 18, 2009 at 6:42pm.

write out the electron configurations for each of the metallic ions:
1. Ba^2+
2. Cu^2+
3. Li^+
4. K^+
5. Sr^2+
6. Ca^2+
7. Na^+

physics - bobpursley, Sunday, October 18, 2009 at 6:46pm
with those charges, the ions have lost the valence electrons, so the electron configuration is the same as the Noble Gas configuration in the previous period.
physics - may, Sunday, October 18, 2009 at 6:52pm
then whats the electron configuration in the Noble Gas configuration in the previous period ?

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