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प्रश्न
Fill in the blanks.
Size of the atoms ______ from left to right across a period and ______ on descending in a group of normal elements.
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उत्तर
Size of the atoms Decrease from left to right across a period and increase on descending in a group of normal elements.
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संबंधित प्रश्न
Answer the following in respect of element `31/15 P `
Give its formula with chlorine?
Arrange the following in increasing order of property indicated
I, I+, I- (atomic size)
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?
- State the common feature in their electronic configuration.
Atomic radius is expressed in the unit ______.
Right or wrong sentence.
Nanometer unit is used to measure atomic radius.
Write information about the given atomic numbers in the table.
| Atomic Number | Electronic configuration | Group | Period | Element |
| 10 | ||||
| 20 | ||||
| 7 |
An element X has mass number 40 and contains 21 neutrons in its atom. To which group of the Periodic Table does it belong?
Arrange the following elements in increasing order of their atomic radii.
- Li, Be, F, N
- Cl, At, Br I
Arrange the following as per instruction given in the bracket.
Mg, Cl, Na, S, Si (decreasing order of atomic size)
Which one of the following has the largest atomic radius?
