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प्रश्न
What is meant in the periodic table by a period?
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उत्तर
In a periodic table, elements are arranged in the order of increasing atomic numbers in horizontal rows called periods.
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संबंधित प्रश्न
How does the tendency of elements to gain electrons change as we move from left to right in a period? State the reason of this change.
What is the major characteristic of the first elements in the periods of the periodic table? What is the general name of such elements?
State how the valency of elements varies in a group of the periodic table?
Helium and neon are unreactive gases. What, if anything, do their atoms have in common?
Give the group number of following elements present in periodic table
How many groups and periods does the modern periodic table have?
Name two elements in each case:
Transition element
State its position in the periodic table?
An X element with atomic number 11 and Y element with atomic number 13 belongs to the third period in the modern periodic table. With this information, give the answers of the below questions.
- Which element has more metallic character from these two elements?
- What is the valency of each X and Y elements?
- Atom size of Y element is smaller than atom size of X element. Explain.
Group 16 elements are collectively called as ______.
