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प्रश्न
Complete the Table:
| Atomic number | Mass number | Number of neutrons | Number of protons | Number of electrons | Name of the elements |
| 5 | - | 6 | - | - | - |
| - | 14 | - | - | 7 | Nitrogen |
| - | 24 | - | 12 | - | - |
| 15 | - | 16 | - | - | - |
| - | 1 | 0 | - | - | - |
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उत्तर
The completed table is given below:
|
Atomic number |
Mass number |
Number of neutrons |
Number of protons |
Number of electrons |
Name of the element |
|---|---|---|---|---|---|
|
5 |
11 |
6 |
5 |
5 |
Boron |
|
7 |
14 |
7 |
7 |
7 |
Nitrogen |
|
12 |
24 |
12 |
12 |
12 |
Magnesium |
|
15 |
31 |
16 |
15 |
15 |
Phosphorus |
|
1 |
1 |
0 |
1 |
1 |
Hydrogen |
Explanation:
- Atomic number = Number of protons
- Mass number = Number of protons + Number of neutrons
- Number of neutrons = Mass number − Atomic number
- In a neutral atom, number of electrons = Number of protons.
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