Question

multiple - choice question
why is radiation called ionizing radiation?
it can add protons or neutrons to the nucleus
it only affects ions, never affects neutral atoms
it can add or remove electrons from atoms to create ions

Explanation:

Ionizing radiation has enough energy to add or remove electrons from atoms. When electrons are added or removed from atoms, ions are created. The first option about adding protons or neutrons is related to nuclear reactions (not the core of why it's called ionizing). The second option is incorrect as it can affect neutral atoms (by ionizing them).

Answer:

It can add or remove electrons from atoms to create ions.