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17-01-2017
Chemistry

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I NEED HELP PLEASE!!!!!

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

Respuesta :

17-01-2017

atoms can be divided more so thats not true. atoms from the same element arent all nesacarly identical because of isotopes

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Аноним Аноним

18-01-2017

Atoms of different elements can combine physically and chemically.
Chemical reactions occur when atoms are joined or separated.

Answer Link

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