Which of the following gases does not belong to the noble gas category?
Which of the following gases does not belong to the noble gas category? Correct Answer Boron
Option 2 is correct, i.e. Boron.
- The noble gases are placed in the 18th group of the modern periodic table.
- The gases present in the 18th group is known as zero gases/ noble gases/ non-reactive gases.
- There are 7 noble gases in the periodic table.
| 18th Group elements (noble gas) | Atomic number |
| Helium | 2 |
| Neon | 10 |
| Argon | 18 |
| Krypton | 36 |
| Xenon | 54 |
| Radon | 86 |
| Ununoctium | 118 |
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Feb 20, 2025