Physical property of matter because you don't have to change its chemical make-up to tell, you can observe it using your senses and tools.
I'm assuming that C is carbon.

55.1259 g of C
Neon is usually found in the form of a gas with molecules consisting of a single Neon atom. Neon is a rare gas that is found in the Earth's<span> atmosphere at 1 part in 65,000. I'm not 100% sure but i am pretty sure it is found in both places but more is in South America. Just incase, wait for someone else to answer.</span>
Answer:
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