Question

A nutron strikes an atom of uranium-235 to start a fission reaction. A student expresses this situation as 0/1n + 235/92U.Which statement describes why the expression is incorrect?

The mass number for uranium-235 is in the wrong location

A neutron should be expresses as 1/0n, hot 0/1n

A neutron should be expressed as 1/1H, not 0/1H

The atomic number for uranium-235 is in the wrong location

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