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प्रश्न
Arrange the following as per the instruction given in the brackets:
Na, K, Li (Increasing atomic size)
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उत्तर
Li < Na < K
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संबंधित प्रश्न
What do you understand by atomic size? State its unit?
Give the trends in atomic size on moving down the group.
Why is the size of neon greater than fluorine?
Which is greater in size Fe2+ or Fe3+?
Give scientific reasons for the following:
Atomic radius goes on decreasing while going from left to right in a period.
Study the radius of the element given below and answer the following questions.
| elements | K | Na | Rb | Cs | Li |
| Atomic radius (pm) | 231 | 186 | 244 | 262 | 151 |
a) Which of the above elements have the smallest atom?
b) In which group of the modern periodic table the above element are belongs?
c) What is the periodic trend observed in the variation of atomic radii 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.
The metals of Group 2 from top to bottom are Be, Mg, Ca, Sr and Ba. Which one of these elements will form ions most readily and why?
Write scientific reason.
In same period, boron and oxygen elements have different atomic size.
In Period 3 of the Periodic Table, element B is placed to the left of element A. On the basis of this information, choose the correct word from the option to complete the following statement:
The element A would have ______ atomic size than B.
