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प्रश्न
______ forms the basis of the modern periodic table.
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उत्तर
Atomic number forms the basis of the modern periodic table.
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संबंधित प्रश्न
State modern periodic law.
Give two example of group 1 elements.
What is the major characteristic of the first elements in the periods of the periodic table? What is the general name of such elements?
On the basis of electronic configuration, how will you identify chemically similar elements?
Name the type of elements which have outermost shell complete.
Name the type of elements which have two outermost shell incomplete.
The electronic configuration of an element T is 2, 8, 8, 1.
What is the group number of T?
An element A has 2 electrons in its fourth shell. State its electronic configuration.
Give the chemical formula of magnesium nitrate
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.
