what is the appropriate radius of an atom
Atomic radius Under most definitions the radii of isolated neutral atoms range between 30 and 300 pm (trillionths of a meter), or between 0.3 and 3 ångströms. Therefore, the radius of an atom is more than 10,000 times the radius of its nucleus (1–10 fm),[2] and less than 1/1000 of the wavelength of visible light (400–700 nm).
Exponentiation Any nonzero number raised to the 0 power is 1:[11]
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Alonso Álvarez de Pineda