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प्रश्न
In the Modern Periodic Table – atoms of all elements are arranged according to their increasing order of – atomic numbers. An atom of nitrogen has seven protons and seven electrons. State what would be its atomic number.
उत्तर
| Atomic number | Number of protons | Number of electrons |
| Z | p | e |
| Nitrogen atom has | 7 Protens | 7 electrons |
∴ Atomic number [Z] = no. of protons [p] = no. of electrons [e]
Z = 7 = 7
∴ Atomic number of nitrogen is 7.
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