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प्रश्न
Draw the atomic diagram of the following element showing the distribution of – protons, neutrons and the electrons in the various shell of the atom.
Carbon – \[\ce{^12_6C}\]
[The upper number represent the – mass number and the lower number represent the – atomic number e.g. calcium – mass number = 40, atomic number = 20]
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उत्तर
Carbon – \[\ce{^12_6C}\]
Mass number A = p + n = 12
6 + n = 12
∴ n = 12 − 6 = 6
e = p = Atomic number = 6
C
6 = 2, 4
(K, L)
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संबंधित प्रश्न
Complete the following table.
| Atomic number | Mass number | Number of Neutrons | Number of protons | Number of electrons | Name of the Atomic species |
| 9 | - | 10 | - | - | - |
| 16 | 32 | - | - | - | Sulphur |
| - | 24 | - | 12 | - | - |
| - | 2 | - | 1 | - | - |
| - | 1 | 0 | 1 | 0 | - |
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(b) What do we call this number which is characteristic of a particular element?
The atom of an element is made up of 4 protons, 5 neutrons and 4 electrons. What are its atomic number and mass number?
The diagram represents an isotope of hydrogen [H]. Answer the following:
Atomic no. = 1
Mass no. = 1
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- State which one is
(1) a non-metal,
(2) a metal,
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Atomic number and mass number
The particles that make up the atom are called ______ particles.
