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प्रश्न
An element with the largest atomic radius among the following is ______.
विकल्प
Carbon
Nitrogen
Lithium
Beryllium
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उत्तर
An element with the largest atomic radius among the following is lithium.
Explanation:
- The second period contains carbon, nitrogen, lithium, and beryllium.
- Over a period, the atomic radius decreases from left to right.
- In the second period, lithium is on the far left.
- Thus, out of C, N, and Be, lithium has the biggest atomic radius.
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संबंधित प्रश्न
Write scientific reason.
Atomic radius goes on increasing down a group.
Atomic radius is expressed in the unit _______.
Some elements and their atomic radii are given here. Arrange them in decreasing order of their atomic radii. Identify which of the above elements is the biggest atom and which is smallest?
| Element | K | Na | Rb | Cs | Li |
| Atomic radius (pm) | 231 | 186 | 244 | 262 | 151 |
Which of the following is the correct order of atomic size?
When an atom of iodine becomes an iodine ion (I–) the radius will ______
Elements have been arranged in the following sequence on the basis of their increasing atomic masses.
| F, | Na, | Mg, | Al, | Si, | P, | S, | Cl, | Ar, | K |
- Pick two sets of elements which have similar properties.
- The given sequence represents which law of classification of elements?
Arrange the following elements in increasing order of their atomic radii.
- Li, Be, F, N
- Cl, At, Br I
Arrange the following in order of increasing radii:
Mg2+, Mg, Mg+
Explain your choice.
Give reason for the following:
The size of a Cl− ion is greater than the size of a Cl atom.
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?
