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OpenStudy (anonymous):
Uranium has 146 neutrons; therefore its mass number is which of the following?
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sam (.sam.):
Which of the following?
OpenStudy (rane):
?????? the following?
OpenStudy (anonymous):
234or238
OpenStudy (anonymous):
The mass number is the total molecular weight of the nucleus in amu. Electrons are ignored. Given the number of nutrons the total mass can be calculated as the number of protons are always constant for a specific element. Thus look up the atomic number of U, make the addition and voila
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