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what substance is composed of only one kind of atom?
a.element
b.compound
c.pure substance
d.mixture​


Sagot :

Answer:

1.A

Explanation:

element

An element is a pure substance and is made of only one type of atom; it cannot be broken down into a simpler substance.

Answer:

a.

Explanation:

elemant at made with one atom and compuond are two or more atom