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प्रश्न
Complete the table below by identifying A, B, C, D, E and F.
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उत्तर
| Element | Symbol | Number of protons |
Numbers of neutrons |
Number if electrons |
| Fluorine | `""_9F""^19` | 9 | `A` | `B` |
| Aluminium | `C` | `D` | `14` | `13` |
| Postassium | `""_19K""^39` | `E` | `F` | `19` |
ans
| Element | Symbol | Number of protons | Number of neutrons | Numbers if electrons |
| Fluorine | `""_9F""^19` | 9 | 10 | 9 |
| Aluminium | `""_13Al""^27` | 13 | 14 | 13 |
| Potassium | `""_19K""^39` | 19 | 20 | 19 |
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संबंधित प्रश्न
Give the following a suitable word/phrase.
The number of protons present in the nucleus of an atom.
How does the existence of isotopes contradict Dalton’s atomic theory?
FILL IN THE BLANK
The protons and neutrons are held firmly in the nucleus by strong .........................
WRITE SHORT ANSWER
What is the central part of an atom known as?
Which part of atom was discovered by Rutherford?
State one major drawback of Rutherford's model.
Which metal did rutherford select for his `alpha` particle scattering experiment and why?
Where is the nucleus of an atom situated?
Explain in brief – Lod Rutherford’s experiment which led to the discovery of the atomic nucleus.
Differentiate between the following term:
Nucleus and nucleons
