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Chemistry 21 Online
OpenStudy (fernforlife):

A polonium atom has 84 protons, 124 neutrons, and 84 electrons. What will it change to during alpha decay? A lead atom with 82 protons, 122 neutrons, and 84 electrons A bismuth atom with 83 protons, 123 neutrons, and 84 electrons A polonium atom with 84 protons, 124 neutrons, and 85 electrons An astatine atom with 85 protons, 123 neutrons, and 84 electrons

OpenStudy (fernforlife):

@pooja195

OpenStudy (zpupster):

Alpha decay is in essence, the atom giving off a Helium nucleus. Thus, you should expect to see it lose two protons (which decreases the atomic number by 2) and two neutrons, and a drop of 4 in the atomic mass.

OpenStudy (zpupster):

protons 84-2 neutrons 124 - 2

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