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Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.
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Acontrol during an experiment. might change remains constant does not exist does change
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When a beta particle is emitted, the mass number of the nucleus a. decreases by one b. increases by one c. remains the same d. decreases by two
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Anything with mass creates gravity, but the amount of gravity is proportional to the amount of mass....
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