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प्रश्न
One of the following elements has an atomicity of ‘one’. This element is :
विकल्प
helium
hydrogen
sulphur
ozone
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उत्तर
Helium
The atomicity of Helium (He) is 1.
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संबंधित प्रश्न
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| Species Property | H2O | CO2 | Na atom | MgCl2 |
| No. of moles | 2 | - | - | 0.5 |
| No. of particles | - | 3.011×1023 | - | - |
| Mass | 36g | - | 115 g | - |
