A neutron strikes an atom of uranium-235 to start a fission reaction. A student expresses this situation as 0/1n + 235/92 U. Which statement describes why the expression is incorrect?
A. The mass number for uranium-235 is in the wrong location.
B. A neutron should be expressed as 1/0n, not 0/1n.
C. A neutron should be expressed as 1/1n, not 0/1n.
D. The atomic number for uranium-235 is in the wrong location.
1 answer
B. A neutron should be expressed as 1/0n, not 0/1n.