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OpenStudy (anonymous):
If a substance is composed entirely of one type of atom, it is known as a(n) _______. A. isotope. B. chemical element. C. homogeneous mixture. D. neutron. PLEASE HELP !
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OpenStudy (anonymous):
"Its elementary, my dear watson" there's a hint for you.
OpenStudy (anonymous):
so its B ? ok
OpenStudy (anonymous):
yes. neutrons are not atoms, a mixture has more than one kind of atom, and an isotope is an atom but with a change in neutrons
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