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Americium has an atomic symbol of Am. Looking at a periodic table, you'll see that it has an atomic number of 95. This indicates the number of protons. As for neutrons: Again referring back to the Periodic Table, you'll notice Am has an Atomic Mass of 243amu. Each proton is 1amu, and we know Am has 95 of those. Also, every neutron is 1amu. So, we get 243amu - 95amu = 148amu. And thus there are 148 neutrons.

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16y ago

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