# Physics

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If a polonium-210 (Po-210) atom has just decayed, how close can the ejected
alpha particle get to a neighboring Po-210 nucleus?
Hint: W = F*r
F=kq1q2/r

• Physics -

I am not sure where the 45.17-36.15 = 9.02 MeV of energy comes from and the +84 e comes from?

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