This model was the first to show a nucleus, consisting of protons and neutrons. Electrons surround the nucleus but are not shown in distinct energy levels.
Planetary model or Rutherford's model
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15
Which model was created after the discovery of the nucleus?
B
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This Greek philosopher stated matter was made of four main elements - water, air, earth and fire.
Aristotle
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Which model of the atom is the most up to date model?
Quantum model
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This model was developed after J.J. Thompson discovered electrons, a particle smaller than an atom. It shows electrons floating freely in a positive region.
The "Plum Pudding Model" of the atom
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15
Which one of these is Dalton's Model?
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Place the following atomic models in order, from earliest to latest: A) Rutherford B) Thomson C) Dalton
C, B, A
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In the atomic model nicknamed the "plum pudding" model, what do the plums represent?
Electrons
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Who was the first to propose that matter consist of indivisible particles of matter called atoms?
Democritus
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This was the first model of the atom ever proposed. It was simple and described atoms as tiny spheres that could not be broken down into smaller pieces.
Democritus model
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trap
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gold
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fairy
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lifesaver
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Which model was created after the discovery of the electron cloud?
C
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thief
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seesaw
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shark
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banana
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Who proposed that electrons move around the nucleus in circular orbits?
Niels Bohr
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seesaw
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shark
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rocket
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thief
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Dalton developed the first scientifically tested atomic theory. (T/F)