Question
Uranium-235 is used in nuclear fission. Determine the number of protons and the number of neutrons in uranium- 235 and write its symbol in the form ${ }_{Z}^{A} \mathrm{X}$.
Step 1
The atomic number is the number of protons in an atom. For uranium, the atomic number is 92. This is represented as Z in the atomic symbol. So, we have ${ }_{92}^{A} \mathrm{U}$. Show more…
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