1 Calculate the distance of the closest approach of a-particles from the copper nucleus, when a-particles of 5 Mêy energy are scattered back by a thin sheet of copper. Given Z for Cu = 29, e = 1.6 x 10°C, &, = 8.854 x 1012 F/m.

1 Calculate the distance of the closest approach of a-particles from the copper nucleus, when a-particles of 5 Mêy energy are scattered back by a thin sheet of copper. Given Z for Cu = 29, e = 1.6 x 10°C, &, = 8.854 x 1012 F/m.

Intro Spectroscopy

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ISBN:9781305221796

Author:PAVIA

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Chapter7: Nuclear Magnetic Resonance Spectroscopy: Part Three: Spin–spin Coupling

Section: Chapter Questions

Problem 31P

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Rutherford's scattering experiment

Rutherford’s scattering experiment is also known as the gold foil experiment. This experiment disproved the plum pudding model of J.J. Thomson. In a gold foil experiment, high-energy alpha particles are made to strike a thin gold foil. The scattered alpha particles are detected using a detector. This experiment showed that the positive charge of the atom is at the center. Most of the atom’s mass is also confined to a small volume at the center. This region is known as the nucleus of the atom.

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Calculate the distance of the closest approach of a-particles from the copper nucleus, when
a-particles of 5 Mêy energy are scattered back by a thin sheet of copper. Given Z for Cu = 29, e = 1.6
x 101°C, E, = 8.854 x 1012 F/m.

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