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प्रश्न
What do you understand by atomic size? State its unit?
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उत्तर
Atomic size is the distance between the centre of an atom's nucleus and its outermost shell. It is measured in Angstroms and Picometres.
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संबंधित प्रश्न
Give the trends in atomic size on moving down the group.
Fill in the blank:
On moving across a period from right to left in the periodic table, the atomic size of the atom ___________.
Give reason for the following:
Argon atom is bigger than chlorine atom.
Write an explanation.
Atomic radius
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 ______
Which of the following is the correct order of atomic size?
Arrange the following elements in increasing order of their atomic radii.
- Li, Be, F, N
- Cl, At, Br I
- In below ladder symbols of elements are jumbled up. Rearrange these symbols of elements in the increasing order of their atomic number in the Periodic Table.
- Arrange them in the order of their group also.
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?
