A mixture of radioactive substances gives off three types of radiations. The radiation which has the highest ionizing power is

Q. A radioactive source emits types of radiations. Name the radiation which has the highest ionizing power.

Q. A mixture of radioactive substances gives off three types of radiations.
(a) Name these three types of radiations.
(b) Name the type of radiation consisting of the same kind of particles as cathode rays.
(c) One of these radiations is similar to X-rays. Name the radiation.
(d) When the particle referred to in (c) becomes neutral, it is found to be the atom of a rare gas. Name this rare gas.
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Q. A radioactive source emits three types of radiations. Name the radiation which has the lowest penetrating power.

Q. What is meant by radioactivity? Which are the three types of radiation given out by radioactive substances?