Answer:
it's a segment
Explanation:
it has multiple end points
I just took a test with this question and got the answer wrong for saying ethane. The correct answer is propane.
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B. carbon-13 is not an allotrope of Carbon.
Allotropes<span> are elements on the periodic table that have more than one crystalline form. </span>Isotopes<span> are atoms of the same element with the same atomic number but have a different mass number.
C-13 is an isotope of carbon, not an allotrope.</span>
