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Lithium has an atomic number of and an atomic mass of
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Can anybody me with this? ? (picture included.)
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Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?
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The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).
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Lithium has an atomic number of and an atomic mass of...
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