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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
How does a proton differ from an electron?
(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?
What is the nature of the charge on Anode rays?
Which sub-atomic particle was discovered by Goldstein.
Name the sub-atomic particle whose charge is +1.
Complete the table given below by identifying P, Q, R and S.
|
Element |
Symbol |
No. of Protons |
No. of neutrons |
No. of Electrons |
|
Sodium |
`""_11^23"NA"` |
11 |
P |
11 |
|
Chlorine |
`""_17^35"CI"` |
Q |
18 |
17 |
|
Uranium |
R |
92 |
146 |
92 |
|
S |
`""_9^19"F"` |
9 |
10 |
9 |
Complete the table given below
|
|
No. of protons |
No. of electrons |
No. of Neutrons |
Atomic Number |
Mass number |
| `""_17^35"CI"` |
|
|
|
|
|
| `""_17^37"CI"` |
|
|
|
|
|
Define: Electron
Define: Neutron
An atom differs from its ion in ______.
