give the number of subatomic particles present in a pair of isotopes
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Isotopes are defined first by their element and then by the sum of the protons and neutrons present. Carbon-12 (or 12C) contains six protons, six neutrons, and six electrons; therefore, it has a mass number of 12 amu (six protons and six neutrons).
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Answer:
Isotopes are defined first by their element and then by the sum of the protons and neutrons present. Carbon-12 (or 12C) contains six protons, six neutrons, and six electrons; therefore, it has a mass number of 12 amu (six protons and six
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