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प्रश्न
Give the trends in atomic size on moving across the period left to right.
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उत्तर
Atomic size decreases from left to right as the Atomic Number increases by one at each stage, with one proton added to the nucleus and one electron added to the valence shell. As nuclear attraction rises, the size of the atom decreases.
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संबंधित प्रश्न
Arrange the following as per the instruction given in the brackets:
Na, K, Li (Increasing atomic size)
Answer the following in respect of element `31/15 P`
Give its electronic configuration
Which is greater in size an atom or a cation?
The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer.
The atomic size:
On moving from left to right in a periodic table, the size of the atom ______.
While going from top to bottom in a group the atomic radius ______.
Write an explanation.
Atomic radius
Which of the following gives the correct increasing order of the atomic radii of O, F, and N?
Which of the following gives the correct increasing order of the atomic radii of O, F and N?
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?
