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Which of the following is the best definition of an atom?

O A. A particle within the nucleus that has a neutral charge
B. A negatively charged particle that circles the nucleus
C. The fundamental unit of all matter, both living and nonliving
O D. A positively charged particle within the nucleus
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User Stephanie
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Answer:

C. The fundamental unit of all matter, both living and nonliving

User Snobojohan
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