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Chemistry

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What are the 4 categories included in the Periodic Table?


There are many ways to categorize elements. I am uncertain how you got just four.

The Originator of the four concepts did it this way...

http://elements.vanderkrogt.net/chemical_symbols.html


Maybe your teacher is looking for these four: Nonmetals, metals, noble gases, and rare earths. Or nonmetals, metals, noble gases, and metalloids.



Thanks!
Do you know the group numbers of the periodic table or know a site that does?


Go to www.webelements.com amd click on the pro version.

  • HELP! -

    Do you guys have a poem for group 17 of the periodic table

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