Use the exact values you enter in previous answer(s) to make later calculation(s

Question

Use the exact values you enter in previous answer(s) to make later calculation(s). Previous question and values----->>>If an electron is confined to a region of size 43.0 nm, what is the minimum possible uncertainty in its momentum? 1.22E-27 kg * m/s The nucleus of a hydrogen atom is a single proton. The radius of a proton is approximately 1 fm (1E?15 m). (a) What is the approximate volume of a proton? =_____________m3 (b) A hydrogen atom has an approximate radius of 5E?11 m (called the Bohr radius). What is the approximate volume of a hydrogen atom? =_____________m3 (c) What fraction of a hydrogen atom is occupied by the nucleus? =_____________

Explanation / Answer

volume = (4/3)Pi r^3 proton volume = (4/3)Pi(1 x 10 -15m)^3 = 4 x 10^-45 m^3 atom volume = (4/3)Pi(1 x 10 -10m)^3 = 4 x 10^ -30 m^3 fraction occupied by nucleus 1:10^15 one in 1 00000 00000 00000 is occupied by the nucleus so those drawings we see of atoms greatly exaggerate the size of the nucleus

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