We often use a Geiger counter to detect and count the decay of radioactive material.
Radioactive Contamination
The length of time required for half of a sample of radioactive material to decay
A radioactive material is radioactive. Period. The atoms of radioactive material have unstable nuclei. If you combine them with other material, the radioactive material will remain unaffected as regards its radioactivity. Recall that radioactivity is related to the instability of atomic nuclei, and the atomic structure of atomic nuclei are (in general) not involved in chemical bonding. Chemical bonding doesn't affect the stability of the nuclei of atoms. If they are unstable, they will remain so whether the atoms are alone or chemically combined with something else.
nuclear energy
- a radioactive material emit nuclear radiations as alpha, beta, gamma, neutrons - a radioactive material disintegrate in time
Yes, there are a number of uses for radioactive material. It depends on the type of radioactive material.
The name for the emissions of rays and particles by a radioactive material are called radioactive decay. There are many different types of radioactive decay that emit different rays and particles.
As radium is radioactive, radium chloride would also be radioactive. Any compounds make with any radioactive material are radioactive, and they cannot be "not" radioactive. Radioactive material doesn't really care if it is "alone" or in compound; it will be radioactive in any case.
The core of the earth is radioactive, as is the sun. Granites, which crystallize from mantle material are commonly slightly radioactive.
Radioactive Contamination
400 yrs
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The length of time required for half of a sample of radioactive material to decay
That depends on the radioactive material. But whether you use it or not, the radioactive material will decay into other elements over the course of time. The time it takes for half of the material to decay into something else is called the "half-life". The more radioactive the substance is, the faster it decays. The half-life of a radioactive element can be measured from fractions of a second to billions of years.
There is radioactive material in any country that has done nuclear tests. In The United States of America there were many tests. These were mostly in Nevada. If you were to get clearance to go to the test site you would see the craters everywhere.
The radioactive placard on a vehicle indicates that the vehicle carries some amount or regulated radioactive material.
the same when separated