why radioactive elements should be eliminated on earth?

Question

plz..tell me.. i need to know this

Answer 1

It seems you've asked this question four times, and you've already got some good answers for what seems like a homework question by a misguided teacher.

First of all radiation is not necessarily bad, and second of all there are dozens of naturally occurring radioactive elements. When most non-technical people think of radioactive elements, they think immediately of uranium. Fact is, way less than 0.1% of the gamma radiation on the earth's surface is caused by uranium. Most gamma radiation is solar radiation from the sun. So even if you were to eliminate radioactive elements, it would not significantly change the amount of gamma radiation (or even alpha and beta particles) that we are subjected to every second of our life.

I can't imagine any reason why radioactive elements "should" be eliminated, and on top of that it is absolutely impossible to achieve that. Radioactive elements that occur in nature include uranium, carbon, thorium, potassium, iodine, bismuth, and lead.

Answer 2

To remove radioactive material from the earth is impossible.

One example would be Radon- is a gas produced by the radioactive decay of the element radium. Radioactive decay is a natural, spontaneous process in which an atom of one element decays or breaks down to form another element by losing atomic particles (protons, neutrons, or electrons). When solid radium decays to form radon gas, it loses two protons and two neutrons. These two protons and two neutrons are called an alpha particle, which is a type of radiation. The elements that produce radiation are called radioactive. Radon itself is radioactive because it also decays, losing an alpha particle and forming the element polonium.

The only way radiation diminishes is by half-life- The rate of radioactive decay is characteristic of each radionuclide. Scientists talk about this rate as a radionuclide's radioactive half-life, commonly referred to as just half-life. It is the time required for the disintegration of one-half of the radioactive atoms that are present when measurement starts. It does not represent a fixed number of atoms that disintegrate, but a fraction.

For example, if there are hundred atoms of a radionuclide that has a half-life of one minute, there will be one half that number, or fifty atoms of the original radionuclide left one minute later. After the second minute, there will be 25 atoms of the original radionuclide left. The fact that this simple example points to the existence of 12.5 radioactive atoms after three minutes, illustrates that half-life is intended to be used for the very large number of atoms that are found in even small samples of radioactive materials. 100 atoms aren't going to give off much radiation!

The half-life tells how quickly the radioactivity from the radionuclide will decrease. The number of curies tells how active it is now.

Answer 3

We can't eliminated the radioactive elements on earth.

Answer 4

That would be impossible. There are naturally occurring radioactive elements all through the earth.

Answer 5

Radioactive elements (isotopes) - many are part of the natural environment (except for transuranics - isotopes heavier than uranium) and cannot be eliminated.