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प्रश्न
What are free electrons?
उत्तर
Electrons revolving in the outermost orbit of an atom which are weakly held by the nucleus are called free electrons
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संबंधित प्रश्न
When does the nucleus of an atom tend to become radioactive?
What are isobars?
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During the emission of a beta particle, the ______ number remains same.
Why should a radioactive substance not be touched by hands?
What are cathode rays? Why are they called ‘cathode rays’? Name a material which exhibits fluorescence when cathode rays fall on it.
Name the Different Radiations Which Are Emitted by the Radioactive Substances.
Are all the radiations mentioned by you, emitted in a single radioactive decay?
88Ra226 experiences three α - decay. Find the number of neutrons in the daughter element.
In the following atoms, which one is a radioisotope? Give one use of this isotope.
O16, C14, N14, He4
