Which non-metal makes up diamond, graphite, and the majority of coal? a. sodium b. carbon c. oxygen d. magnesium

The correct answer is option B, that is, carbon.  

Carbon refers to a chemical element denoted by C, exhibiting atomic number 6. It is tetravalent and nonmetallic, forming four electrons accessible to produce covalent chemical bonds.

Carbon in the form of coal, which is primarily carbon is used as a fuel. Graphite is used for high-temperature crucibles, pencil tips, electrodes, dry cells, and as a lubricant. Diamonds have an application in jewelry, and as they are hard, in the industry they are utilized for drilling, cutting, polishing, and grinding.  

- both b and d.

-since b and d are the closest coastlines then that makes it the most affected.

< 3

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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