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प्रश्न
Right or wrong sentence.
Nanometer unit is used to measure atomic radius.
Right or wrong sentence.
Nanometers use these units to measure atoms.
विकल्प
Right
Wrong
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उत्तर
The given sentence is wrong.
Explanation:
Atomic radius is normally reported in picometers (pm) or ångströms (Å) because typical atomic sizes are on the order of 10–300 pm (0.01 - 0.3 nm); 1 pm = 10−12 m. While you can convert to nanometres, `±/"A"` are the standard, more convenient units.
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संबंधित प्रश्न
Why is the size of neon greater than fluorine?
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The atom having the smallest atomic mass.
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The noble gas with the smallest atomic radius.
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Atomic radius goes on increasing down a group.
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Right or wrong sentence.
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The size of an atom depends on the number of valence electrons.
Write an explanation.
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When an atom of iodine becomes an iodine ion (I–) the radius will ______
Which one of the following depict the correct representation of atomic radius(r) of an atom?
|
(i) |
(ii) |
|
(iii) |
(iv) |
Atomic number of a few elements are given below
10, 20, 7, 14
- Identify the elements
- Identify the Group number of these elements in the Periodic Table
- Identify the Periods of these elements in the Periodic Table
- What would be the electronic configuration for each of these elements?
- Determine the valency of these elements
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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.
An element with the largest atomic radius among the following is ______.
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 |
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