Who proposed that electrons occupied different energy states within the atom?

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Who had one of the first ideas that atoms existed and is given credit for naming the atom?

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Who determined that electrons have both properties of waves and particles?

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Who are the scientists who discovered that protons and neutrons were made of smaller particles called quarks?

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Who proposed the first Atomic Theory?

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Who is responsible for the Uncertainty Principle?

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Who proposed the Law of Conservation of Mass?

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Who developed the Plum Pudding Model that was based on his experiments with a cathode ray tube?

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Which model first contained a nucleus and was proposed by Rutherford?

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Who proposed the Exclusion Principle?

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What was the name of Rutherford's experiment that led to his discovery of the nucleus?

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Who first developed the cathode ray tube and determined that a beam of charged particles were moving through the tube when it was attached to a voltage source?

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What particle did Thomson discover in the atom?

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Who developed a wave equation to propose possible locations for electrons within the atom?

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Who is one of the 2 scientists whose work led to the understanding of the wave-particle duality of light and energy (and the birth of the quantum theory)?

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What model of the atom did Bohr propose?

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Who discovered that there were neutral particles in the nucleus that we now call neutrons?

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Who is given credit for the Law of Definite Proportions?

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Who developed the Law of Multiple Proportions?

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What is the name of Dalton's Model of the Atom?

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The name of the modern model of the atom is ... ?

(a)