Question

graded qu... 0:10:01 elapsed which nonmetal makes up diamond, graphite, and the majority of coal? a) magnesium b) oxygen c) sodium d) carbon

Explanation:

Diamond and graphite are allotropes of carbon, and coal is mainly composed of carbon (along with other impurities). Magnesium (A) and Sodium (C) are metals, and Oxygen (B) is not the main component of these substances. So the nonmetal that makes up diamond, graphite, and most of coal is carbon.

Answer:

D) Carbon