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प्रश्न
______ is the longest period in the periodical table.
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उत्तर
The sixth period is the longest period in the periodical table.
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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.
The modern periodic table was prepared by ______.
How would the tendency to lose electrons change as we go from left to right across a period of the periodic table?
On the basis of electronic configuration, how will you identify the first element of a period?
(b) What is the number of elements is 3rd period, the modern periodic table?
Name the type of elements which have two electrons in the outermost orbit.
Give the chemical formula of sodium hydroxide
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.
Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.
It has a similar structure to diamond.
Define groups of modern periodic table.
