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On the periodic table lithium and beryllium are in different groups which statement describes why the two elements are in different groups. They have different number of electron shells. They have different
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On the periodic table lithium and beryllium are in different groups which statement describes why the two elements are in different groups.

They have different number of electron shells.

They have different atomic numbers

They are different colors

They have a different number of electrons in their outer shell

User Jodoox
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Answer:

They have a different number of electrons in their outer shell

User Spawnia
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