Finding atomic makeup: One of the isotop...

Finding atomic makeup: One of the isotopes of uranium used in nuclear power plant is `._(92)^(235)U`. Ho many protons, neutrons, and electrons does an atom of `._(92)^(235)U`have?
Strategy: The number at the bottom left of the element's symbol is the atmoic number indicaring atom. from the mass number at the top left, we know the number of nucleous (protons plus neutrons). Thus, the number of neutrons equals the difference between the mass number (superscript) and atomic number (subscript).

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