advantages and disadvantages of radioactive elements
Answers
Explanation:
If radiation collides with molecules in the air or in your body, it throws out of them electrons. By throwing out electrons you produce charged particles called ions. This means it is the radiation responsible for ionising molecules.
If this happens in our body, the cells may die or they may undergo a change called a mutation. The result is called radiation sickness. A large dose of radiation will cause death!
Small doses of radiation over a long period of time can cause the cells to multiply. However, these cells are mutated. Some time later cancer may occur.
Background Radiation
We are surrounded by background radiation all of the time! Background radiation comes from the soil, rocks, the air, water, plants, building materials and food. Some radiation is due to cosmic rays from outer space. However, fortunately, our body can withstand low level radiation without ill effects because it is able to repair any damage.