State any two properties of `alpha` radiation.

Explanation

To answer the question about the properties of alpha radiation, we can follow these steps:

### Step 1: Define Alpha Radiation
Alpha radiation consists of alpha particles, which are the nuclei of helium atoms. Each alpha particle has a mass number of 4 and an atomic number of 2.

### Step 2: State the First Property
The first property of alpha radiation is that it has **high ionization power**. This means that alpha particles can ionize atoms and molecules very effectively as they pass through matter.

...