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3. if the dartboard below is used to model an atom, which subatomic particles would be located at z?
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Which best describes how johannes kepler developed his laws of planetary motion
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Which other elements contain the same number of outer electrons as sodium
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Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.
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Imagine the movement of a single gas molecule
inside a container Explain the partides motions in
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