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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
Write the merits of the modern periodic table over Mendeleev’s Periodic table
State whether the following statement is true or false:
On going down in a group of the periodic table, the number of valence electrons increases.
Name the type of elements which have outermost shell complete.
The electronic configuration of an element T is 2, 8, 8, 1.
What is the period number of T?
What is the number of elements in the 1st period?
Give the symbol and valency of the following element and radical.
Hydrogen
Give the chemical formula of sodium bicarbonate
The modern periodic table is divided into which blocks?
Which of the following elements does not lose an electron easily?
Name the non-metals in the first twenty elements.
