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chemistry

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Actinides and Lanthanides are elements in group 3A. true or false

I say false

  • chemistry -

    false, they belong in group 3B

  • chemistry -

    Actually, with so many difference schemes out there to group the elements, the A and B system doesn't work very well as far as communications are concerned. One system in use that uses A and B to place the elements is the exact reverse of another system that uses A and B.

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