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प्रश्न
Arrange the elements of second and third periods in increasing order of their atomic size (excluding noble gases).
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उत्तर
Second Period: Fluorine < Oxygen < Nitrogen < Carbon < Boron < Beryllium < Lithium.
Third Period: Chlorine < Sulphur < Phosphorus < Silicon < Aluminum < Magnesium < Sodium.
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संबंधित प्रश्न
What do you understand by atomic size? State its unit?
Arrange the following in order of increasing radii:
CI- , CI
The metals of Group 2 from top to bottom are Be, Mg, Ca, Sr and Ba.
- Which one of these elements will form ions most readily and why?
- State the common feature in their electronic configuration.
On moving from left to right in a periodic table, the size of the atom ______.
The size of an atom is indicated by its ______.
Right or wrong sentence.
Nanometer unit is used to measure atomic radius.
Write scientific reason.
In same period, boron and oxygen elements have different atomic size.
Write information about the given atomic numbers in the table.
| Atomic Number | Electronic configuration | Group | Period | Element |
| 10 | ||||
| 20 | ||||
| 7 |
Carbon belongs to the second period and Group 14. Silicon belongs to the third period and Group 14. If the atomic number of carbon is 6, the atomic number of silicon is ______
When an atom of iodine becomes an iodine ion (I–) the radius will ______
