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the Atomic Mass is on some periodic tables and is the decimal. for example... for carbon the atomic mass is 12.01 on my periodic table that i am looking at

go to this website. http:/www.ptable.com. it should have a Periodic Table and the atomic mass is on the very bottom of each box. for example the atomic mass for bromine is 79.904

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9y ago

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How do you you find the mass number of an atom?

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