Quote:
Originally Posted by BlackPenguin
hi
Do any of you know why the the first four elements melting points in this grp. seem to not follow any pattern. You would expect them to increase going down the group like they do in all other grps.
The melting points are:-
*Mg: 922K
*Ca: 1112K
*Sr: 1042K
*Ba: 998K
Thanks
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Best to include the first member of the group to see any pattern.
Be: 1551K
Mg: 922K
Ca: 1112K
Sr: 1042K
Ba: 998K
The pattern is that melting points fall as you look down the group - except for Magnesium. Why does Mg behave oddly? I've no doubt there's a good explanation and if anyone knows it I'd be happy to hear it.
