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A group of atoms bound in a structure, such as a benzene ring, that is resistant to alteration in chemical reactions. The nucleus contains only protons and neutrons. |
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A positively charged particle held in the nucleus |
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A neutrally charged particle held in the nucleus |
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A negatively charged particle orbiting around the nucleus |
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The first and lightest element in the periodic table. |
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How many protons does Hydrogen have? |
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Name the first three noble gases. |
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Name the first three elements in Period 1A. |
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Hydrogen, Lithium and Sodium |
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How many shells are there in the second inner shell? |
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What is the origin of the term Atom? |
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The term Atom came from the Greek word "Atomus" which means undividable. |
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How many non-metal elements are there? |
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What is the heaviest natural element? |
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On which part of the periodic table are the most reactive metals |
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Is there a lot of space in an atom? |
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Who made the earliest model of an Atom? |
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Which civilization suggested that the atom was a large ball? |
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Who in the modern era confirmed that the atom was a large ball? |
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Who discovered the electron |
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Who suggested the plum pudding model? |
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Who was Ernest Rutherford's teacher? |
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What famous experiment did Ernest Rutherford do to prove that atoms are made of empty space? |
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The gold foil experiment, where alpha particles are fired at a gold foil. Most of the atoms were able to get through |
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