Advertisements
Advertisements
प्रश्न
Complete the table below by identifying A, B, C, D, E and F.
Advertisements
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 |
APPEARS IN
संबंधित प्रश्न
Fill in the blank
The ..........................of an atom is very hard and dense.
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 .........................
ANSWER IN DETAIL
How are radioactive radiations useful in medicines ?
State one major drawback of Rutherford's model.
Name the following:
The element which does not contain any neutron in its nucleus.
Choose the correct option
Rutherford's alpha-particle scattering experiment discovered
Where is the nucleus of an atom situated?
What is meant by the term nucleus
Differentiate between the following term:
Nucleus and nucleons
