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प्रश्न
______ and ______ are called inner transition elements.
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उत्तर
Lanthanides and Actinides are called inner transition elements.
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संबंधित प्रश्न
Why do all the elements of the same group have similar properties?
What is the main characteristic of the last elements in the periods of the periodic table? What is the general name of such elements?
From the standpoint of atomic structure, what determines which element will be the first and which the last in a period the periodic table?
Give the group number of following elements present in periodic table
Name an alkali metal in period 3 and halogen in period 2.
What is the number of elements in the 3rd period, of the modern periodic table?
Give the symbol and valency of the following element and radical.
Hydroxide
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
Spot the error:
The elements of group 13 are called the carbon family.
Define periods of modern periodic table.
