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प्रश्न
Compare Modern Periodic Law with Mendeleev's Periodic Law.
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उत्तर
Modern Periodic Law:
- Basis is “properties of elements depend on electronic configuration.” Elements are arranged in increasing atomic number.
Mendeleev's Periodic Law:
- Basis is “properties of elements are a periodic function of atomic mass.”
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संबंधित प्रश्न
On the basis of electronic configuration, how will you identify the first element of a period?
What are the advantages of the periodic table?
Fill in the blank:
The horizontal rows in the periodic table are called _____________.
Give the symbol and valency of the following element and radical.
Zinc
p-block is composed of groups 1 and 2.
State whether true or false. If false, correct the statement.
Lanthanides and actinides are kept at the bottom of the periodic table because they resemble each other but they do not resemble with any other group elements.
On moving from left to right in a period in the periodic table, the size of the atom ______
The amount of energy released when one or more electrons is added to the neutral atom is ______
An element which is an essential constituent of all organic compounds belongs to
Which of the following elements would lose an electron easily?
