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Questions and Answers
What is the charge of the beam in the cathode ray tube experiment?
What is the charge of the beam in the cathode ray tube experiment?
Which scientist discovered the exact charge and mass of an electron?
Which scientist discovered the exact charge and mass of an electron?
What is the name of the model of the atom proposed by J.J. Thomson?
What is the name of the model of the atom proposed by J.J. Thomson?
What type of radiation is made up of a stream of electrons?
What type of radiation is made up of a stream of electrons?
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Who discovered positive particles, or protons, in atoms?
Who discovered positive particles, or protons, in atoms?
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What is the name of the experiment that led to the discovery of the exact charge and mass of an electron?
What is the name of the experiment that led to the discovery of the exact charge and mass of an electron?
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Who is credited with developing the idea that all matter is composed of tiny, indivisible particles called atoms?
Who is credited with developing the idea that all matter is composed of tiny, indivisible particles called atoms?
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What was the prevailing theory of combustion that was later disproven by Antoine Lavoisier?
What was the prevailing theory of combustion that was later disproven by Antoine Lavoisier?
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Who prepared laughing gas and invented soda pop?
Who prepared laughing gas and invented soda pop?
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Which scientist disproved the Phlogiston Theory by demonstrating that substances burned oxygen?
Which scientist disproved the Phlogiston Theory by demonstrating that substances burned oxygen?
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Who was responsible for obstructing scientific progress during the Middle Ages?
Who was responsible for obstructing scientific progress during the Middle Ages?
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Who discovered oxygen but did not realize it at first?
Who discovered oxygen but did not realize it at first?
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Who developed the Law of Definite Composition, stating that all substances are made up of definite amounts of each element?
Who developed the Law of Definite Composition, stating that all substances are made up of definite amounts of each element?
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What is the name of the scientific principle that states that matter cannot be created or destroyed?
What is the name of the scientific principle that states that matter cannot be created or destroyed?
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Who is credited with the development of the Atomic Theory of Matter?
Who is credited with the development of the Atomic Theory of Matter?
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What is the name of the particle that was the first to be discovered in an atom?
What is the name of the particle that was the first to be discovered in an atom?
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Who discovered that matter could be charged positive or negative?
Who discovered that matter could be charged positive or negative?
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What is the name of the device designed by William Crookes in 1879?
What is the name of the device designed by William Crookes in 1879?
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