What is radioactive elements?
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The elements which emits the alpha betta and Gamma particles so that they become stable is known as radioactive elements.
Like:- Uranium,thorium etc.
They show the property of half life period.
Radium is a radioactive metal used in watch discovered by madam Curie.
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Heya!
Here is ur answer...
RADIO ACITVE ELEMENTS
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The elements whose nucleus which are degenerated by the emission of Alpha, Beta, gama rays..are called as radio active elements..
Ex : Radium, uranium, thorium..
Hope it helps..
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