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The method used to find atomic mass depends on whether you're looking at a single atom, a natural sample, or a sample containing a known ratio of isotopes:
Look Up Atomic Mass on the Periodic Table If it's your first encounter with chemistry, your instructor will want you...
Sum of Protons and Neutrons for a Single Atom To calculate the atomic mass of a single
20/.25 is 80, so the car will travel 80 minutes.
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A goal keepee catering the ball in time is answer
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Some planets have seasons some don't bc of the distance from the sun some of them are too cold or too hot to have seasons
They cant occupy the same box in the periodic table because each atom has a certain number of protons which is the atomic number and no two atoms have the same amount of protons.
