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Chemistry 12 Online
ccowart22:

The periodic table is organized by A) atomic mass. B) atomic size. C) atomic number. D) atomic periodicity.

dude:

Do you have an idea on this one?

ccowart22:

i think it might be A but im prob wrong

dude:

Not mass

ccowart22:

C?

dude:

Right

torres1:

c

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