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प्रश्न
Right or wrong sentence.
Moving from left to right, the size of the atom decreases.
पर्याय
Right
Wrong
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उत्तर
The given sentence is right.
Explanation:
If you mean “moving from left to right across a period of the periodic table”, the sentence is correct: atomic size (atomic radius) generally decreases because the nuclear charge increases while electrons are added to the same shell, so electrons are pulled in closer to the nucleus.
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संबंधित प्रश्न
Give the trends in atomic size on moving across the period left to right.
Why is the size of neon greater than fluorine?
Which is greater in size an atom or a cation?
Fill in the blank:
On moving across a period from right to left in the periodic table, the atomic size of the atom ___________.
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.
With reference to the variation of properties in the Periodic Table, which of the following is generally true?
Atomic size increases from left to right across a period.
Arrange the following as per the instruction given in the bracket
Na, K, Li (Increasing atomic size)
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:
The size of an atom is indicated by its ______.
Right or wrong sentence.
Nanometer unit is used to measure atomic radius.
Right or wrong sentence.
The size of an atom depends on the number of valence electrons.
Which among the following elements has the largest atomic radii?
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
Which one of the following has the largest atomic radius?
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?
