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Questions and Answers
Who proposed a model of the atom in which the electron was able to occupy only certain orbits around the nucleus?
Who proposed a model of the atom in which the electron was able to occupy only certain orbits around the nucleus?
Which scientist discovered the proton using a tube filled with hydrogen gas?
Which scientist discovered the proton using a tube filled with hydrogen gas?
According to John Dalton's postulates, atoms of different elements mix or combine in:
According to John Dalton's postulates, atoms of different elements mix or combine in:
Who used the gold foil experiment to discover the nucleus?
Who used the gold foil experiment to discover the nucleus?
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Which scientist proposed that atoms are composed of indivisible particles called atoms?
Which scientist proposed that atoms are composed of indivisible particles called atoms?
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Who discovered the electron and believed that the atom was a solid positive sphere with electrons shoved into the sides of it?
Who discovered the electron and believed that the atom was a solid positive sphere with electrons shoved into the sides of it?
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According to John Dalton's postulates, atoms of the same element are:
According to John Dalton's postulates, atoms of the same element are:
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Who discovered the neutron?
Who discovered the neutron?
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Who collected the x-ray spectra of a variety of elements and found that the frequency of x-ray radiation has a precise mathem?
Who collected the x-ray spectra of a variety of elements and found that the frequency of x-ray radiation has a precise mathem?
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Who performed an experiment with a cathode ray tube and discovered the electron?
Who performed an experiment with a cathode ray tube and discovered the electron?
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Who was the first person to propose the existence of atoms?
Who was the first person to propose the existence of atoms?
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Which scientist had experimental evidence to support the theory of atoms?
Which scientist had experimental evidence to support the theory of atoms?
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How are elements heavier than iron formed during a supernova?
How are elements heavier than iron formed during a supernova?
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Which scientist made significant contributions to the understanding of the atom's structure through experiments with cathode rays?
Which scientist made significant contributions to the understanding of the atom's structure through experiments with cathode rays?
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What did Democritus believe matter was composed of?
What did Democritus believe matter was composed of?
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How do elements heavier than iron form during a supernova explosion?
How do elements heavier than iron form during a supernova explosion?
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