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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"H"^1`, `""_0"n"^1`,`""_(-1)"e"^0`
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उत्तर
| Mass | Charge | |
| Proton | 1.672 × 10<sup>- 24</sup>g | Positive |
| Electron | 9.108 × 10<sup>- 28</sup>g | Negative |
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संबंधित प्रश्न
Fill in the blank
Neutrons are .......................... particles having mass equal to that of protons.
Write true or false for the following statement
The central pad of the atom is called nucleus.
Multiple Choice Questions
number of valence electrons present in magnesium is
What are the two main parts of which an atom is made of?
FILL IN THE BLANK
Gases become good conductors of electricity under ........ (low/high) pressure and .............. (low/high) voltage electrical discharge.
FILL IN THE BLANK
In an atom, the last shell containing electrons is called its..................shell.
Tick the most appropriate answer.
In 1908, R A Millikan found the charge of an electron to be
- 1.6 x 10-19 C
- 1.6 x 10-15 C
- 1.4 x 10-19 C
- 1.6 x 19-16 C.
Compare an electron and a proton in respect of mass and charge.
Which of the following statement is always correct?
Name the sub-atomic particle whose charge is 0.
