10/6 C —> 10/5 B + 0/+1 e

A student claims that the equation models beta-minus decay because the atomic number of the nucleus decreases by one. In one or two sentences, explain the error in the student's reasoning.

The error in the student's reasoning is that beta-minus decay involves the conversion of a neutron into a proton, causing the atomic number to increase by one, not decrease. The equation should actually represent beta-plus decay, where a proton is converted into a neutron and a positron is emitted.