We’re being asked to compare the number of protons, electrons, and neutrons in 235U and 238U.
Recall that the symbol for an element or ion is as follows:
The two most common isotopes of uranium are 235U and 238U.
Compare the number of protons, the number of electrons, and the number of neutrons in atoms of these two isotopes.
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What scientific concept do you need to know in order to solve this problem?
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