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प्रश्न
What do you mean by Atomic number
उत्तर
Atomic number is the number of protons present in the nucleus. As number of protons is equal to the number of electrons so atomic number also gives the number of electrons in an atom.
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संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube.
State the approximate voltage used to heat the filament
State three factors on which the rate of emission of electrons from a metal surface depends
Represent the change in the nucleus of a radioactive element when a β particle is emitted.
A radioactive source emits three types of radiations.
Name the radiation which has the highest ionizing power.
What happens to the position of an element in the periodic table when it emits an alpha particle
Name the three main parts of a Cathode Ray Tube.
How is a cathode ray tube used to convert an electrical signal into a visual signal?
From α, β and γ-rays, name the one which is not affected by electric or magnetic field?
What is the value of the speed of gamma radiations in air or vacuum?
