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SAT, 28.06.2019 06:30, Cherrykisses101
Which of the following ideas did greek philosopher democritus contribute to the atomic theory? a. each object is made up of one atom, which varies in size from very small to very large. b. matter is composed of only one kind of particle, which can be easily destroyed. c. every element has a specific type of atom, which remains the same size in all forms of matter. d. all matter is composed of small particles, which combine to make larger objects.
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SAT, 02.07.2019 10:40, Har13526574
The atomic mass of an element is equal to the number of: 1. protons 2. protons plus neutrons 3. protons plus electrons 4. neutrons
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