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krek1111 [17]
3 years ago
5

If a substance is composed entirely of one type of atom, it is known as a(n) _______.

Chemistry
1 answer:
Firlakuza [10]3 years ago
8 0
<span>A substance is composed entirely of one type of atom, it is known as a Chemical element
because mixture contain more than one type of atom and it cannot be neutron or isotope
so correct option is B
hope it helps</span>
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