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प्रश्न
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:
पर्याय
Decreases
Increases
Remains the same
Sometimes increases and sometimes decreases
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उत्तर
Decreases
APPEARS IN
संबंधित प्रश्न
Arrange the following as per the instruction given in the bracket:
Mg, Cl, Na, S, Si (decreasing order of atomic size).
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?
While going from top to bottom in a group the atomic radius _______.
The size of an atom depends on the number of valence electrons.
An element X has mass number 40 and contains 21 neutrons in its atom. To which group of the Periodic Table does it belong?
Which of the following gives the correct increasing order of the atomic radii of O, F and N?
Which among the following elements has the largest atomic radii?
Arrange the following in order of increasing radii:
N, O, P
Explain your choice.
Which one of the following has the largest atomic radius?
