Which of the following statements does not show Rutherford's account of Nuclear Theory? An atom contains a region
which contains protons and neutrons
which is positively charged
which is massive and can cause deflection of a few projectiles
which is very large and in which close to 98% of projectiles pass undeflected
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The statement that does not show Rutherford’s account of Nuclear Theory is D). Rutherford’s nuclear theory describes the atom as having a tiny, dense, positively charged core called a nucleus, which contains most of the mass and protons of the atom1. The nucleus is small and dense to account for the scattering of alpha particles from thin gold foil. Most of the alpha particles passed straight through the gold foil, which implied that atoms are mostly composed of open space. So, statement D) is incorrect because Rutherford’s model did not describe the nucleus as being very large.
which contains protons and neutrons: Rutherford's model focused on the positive charge and mass concentration (protons). Neutrons were discovered later by Chadwick. So, this statement doesn't fully align with Rutherford's original theory.
B) which is positively charged: This is a key part of Rutherford's theory.
C) which is massive and can cause deflection of a few projectiles: This is also a direct result of his experiments and a component of his theory.
D) which is very large and in which close to 98% of projectiles pass undeflected: This reflects the idea of mostly empty space in the atom, a key finding of Rutherford's experiment.
Answer
The statement that doesn't fully align with Rutherford's account is A) which contains protons and neutrons. Rutherford's original model didn't include neutrons.
The option to be selected here ought to be D. Other statements are indeed made by Rutherford based on his discovery.
The correct answer is: D. which is very large and in which close to 98% of projectiles pass undeflected
This statement does not accurately represent Rutherford's account of Nuclear Theory.
Here's why:
Rutherford’s nuclear model proposed that:
The atom has a small, dense, positively charged nucleus.
Most of the atom's volume is empty space, which allows most alpha particles (around 98% or more) to pass through undeflected.
A few particles are deflected due to encountering the dense nucleus.
Breakdown of options:
A. True – The nucleus contains protons and neutrons.
B. True – The nucleus is positively charged due to protons.
C. True – The nucleus is massive relative to the electron cloud and causes deflection of some alpha particles.
D. False/misleading – It incorrectly suggests the region where most particles pass through is very large, implying the nucleus is large. In fact, the nucleus is tiny, and the empty space around it is large. This confuses the concept of space in the atom with the size of the nucleus.
So, D is the one that does not align with Rutherford’s model.
option A is correct rutherford discovered proton and not neutron (james chadwick) and option c is actually legit cos the deflection is the basis of the experiment
Its correct because in his alpha scattering experiment in 1911, He performed an experiment to prove the deflection of the alpha rays after they have passed through the helium nuclei
The correct answer is A. During the alpha particle scattering experiment Rutherford discovered that the atom has a positive massive nucleus which deflects some of the alpha particles. He also discovered a large empty space which the particles pass undeflected but he didn't state whether there were protons or not.
