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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 names given to the vertical columns and horizontal rows in the Modern Periodic Table. How does the metallic character of elements vary on moving down a vertical column? How does the size of atomic radius vary on moving left to right in a horizontal row? Give reason in support of your answer in the above two cases.
What is a period in a periodic table?
What is the main characteristic of the last elements in the periods of the periodic table? What is the general name of such elements?
Write the number of protons, neutrons and electronic configuration of \[\ce{_19^39K, _15^31P}\]. Also state their position in periodic table.
What is the main characteristic of the last element in each period of the periodic table?
The horizontal rows in a periodic table are called _____.
Give the symbol and valency of the following element and radical.
Carbonate
The arrangement of elements in the Modem Periodic Table is based on their ______
If an element X is placed in group 14, what will be the formula and the nature of bonding of its chloride?
An element has the atomic number 12.
- Write the electric configuration.
- To which group and period does it belong.
