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प्रश्न
Define bound electrons.
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उत्तर
As nucleus is positively charged it strongly attracts the negative charged electrons. The electron orbit close to the nucleus are tightly bound by strong attractive force of nucleus. These electrons are known as bound electrons.
संबंधित प्रश्न
Name the radiations which are absorbed by greenhouse gases in the earth’s atmosphere.
Answer the following questions based on a hot cathode ray tube.
What will happen to the beam when it passes through the electric field?
How can they be made to leave the metal surface? (State any two ways)
What do you mean by Atomic number
A nucleus is \[\ce{^24_11 Na}\] β-radioactive.
Write the equation represent β-decay.
In a cathode ray tube state. How is it possible to increase the rate of emission of electrons.
Justify with reason, whether the following nuclear reactions are allowed or not.
\[\ce{^A_Z X -> ^A_{Z + 1}Y + ^0_{-1}β}\]
Mention four properties of Becquerel rays.
Which of the following statements is/are correct?
- α particles are photons
- Penetrating power of γ radiation is very low
- Ionization power is maximum for α rays
- Penetrating power of γ radiation is very high
Assertion (A): The force of repulsion between atomic nucleus and α-particle varies with distance according to inverse square law.
Reason (R): Rutherford did α-particles scattering experiment.
