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प्रश्न
Write down the names of the particles represented by the following symbols and explain the meaning of superscript and subscript numbers attached `""_1"p"^1, ""_0"n"^1,""_-1"e"^0`
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उत्तर
p = proton
n = neutron
e = electron
Superscript number : These superscript number show their mass number
Subscript number : These numbers show their atomic number
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संबंधित प्रश्न
(a) What are cathode rays? What is the nature of charge on cathode rays?
(b) Explain how, cathode rays are formed from the gas taken in the discharge tube.
(c) What conclusion is obtained from the fact that all the gases from cathode rays?
Why are anode rays also called as 'canal rays'?
What is the significance of the number of protons found in the atoms of different elements?
Complete the table given below
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No. of protons |
No. of electrons |
No. of Neutrons |
Atomic Number |
Mass number |
| `""_17^35"CI"` |
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| `""_17^37"CI"` |
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Explain the following:
Mass of an atom is concentrated inside the nucleus of the atom.
Represent an electron ‘e’ in term of its symbol showing the subscript and superscript value.
Write the properties of anode rays.
An atom differs from its ion in ______.
Assertion: Proton can be defined as a hydrogen ion (H+).
Reason: These photons are produced when one electron is removed from one hydrogen atom.
The nature of anode rays depends upon ______.
