A negatively charged particle found circling or orbiting an atomic nucleus. An electron, like a proton is a charged particle, although opposite in sign, but unlike a proton, an electron has negligible atomic mass.
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14 days is the half-life of phosphorus-32
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Ethene molecular fórmula= c2h4molecular weight = 29.046g/molhope it : )
What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures