Give an equation representing the decay of a free electron.

Explanation

To represent the decay of a free electron, we need to understand the process involved. A free electron itself does not decay; however, we can consider the decay of a neutron, which produces a free electron. Here’s the step-by-step solution:

### Step 1: Identify the Initial Particle
The decay process we are considering involves a neutron. We can represent a neutron using the notation:
\[ n^0 \]

### Step 2: Understand the Decay Process
A free neutron decays into a proton, an electron, and an antineutrino. The decay process can be described as follows:
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