Here's a breakdown:

* Acidity: Normal rain is slightly acidic due to the presence of dissolved carbon dioxide, giving it a pH of around 5.6. Acid rain, on the other hand, has a lower pH (typically below 5.0) due to the presence of sulfuric acid (H₂SO₄) and nitric acid (HNO₃) formed from sulfur dioxide (SO₂) and nitrogen oxides (NOx) emissions from human activities like burning fossil fuels.

* Radioactivity: Acid rain is not inherently radioactive. While radioactive elements can be released into the atmosphere by nuclear power plants or other sources, these elements are not the primary cause of acid rain.

* Gaseous: Acid rain is not more gaseous than normal rain. It's still liquid water, just with a lower pH.

In summary, the key difference between acid rain and normal rain is acidity. Acid rain is not more gaseous or radioactive than normal rain.