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Help with chemistry, Ill give brainliest to whoever can help

The mass number of an isotope of uranium is 238, and its atomic number is 92. Which symbol best represents this isotope of uranium?

(ignore the answer i chose, i just guessed)

Help with chemistry Ill give brainliest to whoever can help The mass number of an isotope of uranium is 238 and its atomic number is 92 Which symbol best repres class=