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John Dalton's atomic theory contains 4 postulates. Which postulate(s) still hold(s) true today. Mark all that apply. *

Atoms of different elements can combine physically and chemically.
Atoms are indivisible.
Chemical reactions occur when atoms are joined or separated.
Atoms of the same element are identical

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sahd
atoms can be divided more so thats not true. atoms from the same element arent all nesacarly identical because of isotopes
Atoms of different elements can combine physically and chemically. 
Chemical reactions occur when atoms are joined or separated.