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Unveiling the Atomic World: Understanding Isotopes and Atomic Mass in Carbon

Delve into the world of atoms and isotopes to grasp the concept of atomic mass in carbon. Explore how isotopes differ due to varying neutron counts and learn how atomic mass is calculated as the weighted average of all natural isotopes. Discover why Carbon-12 dominates the composition of carbon in the universe.

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Unveiling the Atomic World: Understanding Isotopes and Atomic Mass in Carbon

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  1. Atom’s Story How We Know What We Can’t See Looks Like Day 4 Average Atomic Mass

  2. Isotopes Atoms of the same element (they have the same number of protons) that have different masses because they have different numbers of neutrons. C C 13 C 14 C 11 12 Carbon – 12 makes up the greatest % of carbon in the universe MASS # 12 C 6 ATOMIC # Relative masses on the P. Table are weighted averages of the isotopes.

  3. Atomic mass is the average of all the naturally isotopes of that element. Atomic Masses Average Atomic Mass = Mass Number1 * %1 + Mass Number2 * %2 + … Average atomic Mass Carbon = 12 * .9888 + 13 * 0.0111 + 14 * 0.0001 Carbon = 12.011

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