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प्रश्न
Atomic radius is expressed in the unit ______.
विकल्प
nanometer
picometer
micrometer
millimeter
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उत्तर
Atomic radius is expressed in the unit picometer.
Explanation:
Because atoms are extremely small, their atomic radii are measured using very small units of length. While nanometres (1 nm = 10−9m) are sometimes used, the picometre (1 pm = 10−12m) is the most standard and precise unit for expressing atomic size in chemistry.
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संबंधित प्रश्न
Answer the following in respect of element `31/15 P`
Give its electronic configuration
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The noble gas with the smallest atomic radius.
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Atomic size increases from left to right across a period.
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The atomic size:
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| Element | K | Na | Rb | Cs | Li |
| Atomic radius (pm) | 231 | 186 | 244 | 262 | 151 |
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- Isotopes of an element have same atomic masses
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- Between the two elements W and Z, which will have a bigger atomic radius? Why?

In Period 3 of the Periodic Table, element B is placed to the left of element A. On the basis of this information, choose the correct word from the option to complete the following statement:
The element A would have ______ atomic size than B.
