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krystalhurst97
26.08.2019 •
Chemistry
Ernest rutherford was a prominent scientist who contributed significantly to the theory of atomic structure. which of the statements are true? select all that apply.(a) rutherford theorized that atoms contain a positively charged region called the nucleus.(b) rutherford devised the plum pudding model to describe the layout of an atom.(c) rutherford disproved the plum pudding model of the atom.(d) rutherford devised the solar system model to describe the layout of the atom.
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Ответ:
(A) Rutherford theorized that atoms contain a positively charged region called the nucleus.
(C) Rutherford disproved the plum pudding model of the atom.
(D) Rutherford devised the solar system model to describe the layout of the atom.
Explanation:
Rutherford conducted an experiment in which he took a thin gold particle film on which he passes alpha- particles. He noticed that:
Most of the alpha particles get through the film and can be detected by the detector. Around small portion of the alpha particle deflected at small angles. A very very few alpha particle (approximately 1 out of 1 million alpha particles) just retraced their path which means come back from the center.He concluded that:
Most of the space of the atom is empty and in the center of the atom , there is solid mass which is the cause of the alpha particles to come back. He gave the term nucleus to this solid mass.
This prove that Thomson's plum pudding model is incorrect.
Rutherford Model is also known as Planetary model in which the nucleus is the Sun and the electrons revolve around it in orbits.
Hence, all are true except Option (B).
Ответ:
c
Explanation: