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प्रश्न
Arrange the following in order of increasing radii:
CI- , CI
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उत्तर
Cl < Cl¯
Explanation:
The radius of an anion is more than the parent atom.
संबंधित प्रश्न
What do you understand by atomic size? State its unit?
Arrange the elements of second and third periods in increasing order of their atomic size (excluding noble gases).
Among the elements of the second period, Li to Ne, pick out the element with the largest atomic size
Select the correct answer
Atomic radii of fluorine and neon in angstrom unit are
Arrange the following as per the instruction given in the bracket:
Mg, Cl, Na, S, Si, (decreasing order of atomic size).
Right or wrong sentence.
Nanometer unit is used to measure atomic radius.
Write an explanation.
Atomic radius
An element X has mass number 40 and contains 21 neutrons in its atom. To which group of the Periodic Table does it belong?
- Electropositive nature of the element(s) increases down the group and decreases across the period
- Electronegativity of the element decreases down the group and increases across the period
- Atomic size increases down the group and decreases across a period (left to right)
- Metallic character increases down the group and decreases across a period.
On the basis of the above trends of the Periodic Table, answer the following about the elements with atomic numbers 3 to 9.
- Name the most electropositive element among them
- Name the most electronegative element
- Name the element with smallest atomic size
- Name the element which is a metalloid
- Name the element which shows maximum valency.
This question refers to the elements of the Periodic Table with atomic numbers from 3 to 18. Some of the elements are shown by letters, but the letters are not the usual symbols of the elements.
| 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| A | B | C | D | E | F | G | H |
| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| I | J | K | L | M | N | O | P |
Which of these have least atomic size in period 3?
