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प्रश्न
The scientist who propounded the modern periodic law is ______.
उत्तर
The scientist who propounded the modern periodic law is Dimitri Mendeleev.
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संबंधित प्रश्न
How many rows and columns are there in the Modem Periodic Table?
What happens to the number of valence electrons in the atoms of elements as we go down in a group of the periodic table?
What are the merits of the modern periodic table of elements?
What are the advantages of the periodic table?
Define:- Periodic table
An element A has 2 electrons in its fourth shell. State its electronic configuration.
Give the symbol and valency of the following element and radical.
Calcium
Give the symbol and valency of the following element and radical.
Ammonium
Give the symbol and valency of the following element and radical.
Carbonate
Spot the error:
The elements of group 13 are called the carbon family.
