rutherford scattered alpha particles from a gold foil to investigate atomic stru
ID: 1392552 • Letter: R
Question
rutherford scattered alpha particles from a gold foil to investigate atomic structure. what was the key conclusion he drew from the experiment?A. Gold atoms must have a point-like heavy nucleus which contains most if the mass.
B. The de Broglie wavelength of gold atoms is extremely small.
C. The positive and negative charges in gold atoms are uniformly spread through the atom. rutherford scattered alpha particles from a gold foil to investigate atomic structure. what was the key conclusion he drew from the experiment?
A. Gold atoms must have a point-like heavy nucleus which contains most if the mass.
B. The de Broglie wavelength of gold atoms is extremely small.
C. The positive and negative charges in gold atoms are uniformly spread through the atom.
A. Gold atoms must have a point-like heavy nucleus which contains most if the mass.
B. The de Broglie wavelength of gold atoms is extremely small.
C. The positive and negative charges in gold atoms are uniformly spread through the atom.
Explanation / Answer
A) CORRECT, the nucleus has the positve charges (protons) as well as neutrons, which contribute to the mass of the whole atom, and these are concentrated in a very small space at the centre of the atom.
B) False
C) False. they are not uniformly spread. Whereas, electrons are revolving in fixed orbits and energy levels around nucleus containing protons.
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