Wednesday, February 10, 2010

True or False. All atoms of alkaline earth elements have two valence electrons.?

True ,True, True, !!! its electron configuration,shows that all have 2 e in the valence outermost shells


4 Beryllium 2, 2


12 Magnesium 2, 8, 2


20 Calcium 2, 8, 8, 2


38 Strontium 2, 8, 18, 8, 2


56 Barium 2, 8, 18, 18, 8, 2


88 Radium 2, 8, 18, 32, 18, 8, 2True or False. All atoms of alkaline earth elements have two valence electrons.?
The alkaline earth elements form Group ll of the periodic table. Being in this group, they have 2 valency electrons on their outermost shell.


Statement is TRUETrue or False. All atoms of alkaline earth elements have two valence electrons.?
True, in their neutral states. They tend to ionize, however.
true.
false
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