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प्रश्न
What is the number of elements in the 3rd period, of the modern periodic table?
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उत्तर
There are eight elements in the third period.
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संबंधित प्रश्न
Why do all the elements of the same group have similar properties?
What are the merits of the modern periodic table of elements?
Correct the statement.
Transition elements are placed at extreme right of the periodic table.
Arrange the elements of second and third periods in increasing order of their atomic size.
Third Period.
Give the symbol and valency of the following element and radical.
Nitrogen [Nitride]
Fill in the blank:
The element lithium in the Modern Periodic Table with valency 1+ belongs to the group ______.
Elements in the modern periodic table are arranged in ______groups and______ periods.
Element ‘X’ forms a chloride with the formula XCl2, which is solid with a high melting point. X would most likely be in the same group of the periodic table as: ______
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?
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 same valency as Lithium.
