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प्रश्न
What are free electrons?
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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
Represent the change in the nucleus of a radioactive element when a β particle is emitted.
What kind of change takes place in a nucleus when a β -particle is emitted?
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Name the radiation which has the highest ionizing power.
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Name the Different Radiations Which Are Emitted by the Radioactive Substances.
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From α, β and γ-rays, name the one which travels with the speed of light?
State three ways of obtaining an electron-beam.
Two radioactive materials A and B have decay constants 25λ and 16λ respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of B to that of A will be "e" after a time `1/("a"lambda)` The value of a ______.
