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प्रश्न
Which one of the following has the largest atomic radius?
पर्याय
Sodium
Potassium
Magnesium
Aluminium
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उत्तर
Potassium
Explanation:
Potassium (K) has the largest atomic radius compared to sodium (Na), magnesium (Mg), and aluminium (Al), which belong to periods 3 and 4 respectively. Potassium has the largest atomic radius among the elements, which means that atomic size increases with decreasing group.
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संबंधित प्रश्न
Give the trends in atomic size on moving across the period left to right.
Write the name and symbol of the element from the description.
The noble gas with the smallest atomic radius.
Write a scientific reason.
Atomic radius goes on increasing down a group.
Fill in the blanks.
Size of the atoms ______ from left to right across a period and ______ on descending in a group of normal elements.
Select the correct answer
Atomic radii of fluorine and neon in angstrom unit are
Right or wrong sentence.
The size of an atom depends on the number of valence electrons.
When an atom of iodine becomes an iodine ion (I–) the radius will ______
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?
