
the percentage of carbon in
Carbon occurs naturally as carbon-12,which makes up almost 99 percentof the carbon in the universe; carbon-13,which makes up about 1 percent; and carbon-14,which makes up a minuscule amount of overall
Carbon occurs naturally as carbon-12,which makes up almost 99 percentof the carbon in the universe; carbon-13,which makes up about 1 percent; and carbon-14,which makes up a minuscule amount of overall
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