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प्रश्न
What is meant in the periodic table by a period?
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उत्तर
In a periodic table, elements are arranged in the order of increasing atomic numbers in horizontal rows called periods.
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संबंधित प्रश्न
Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the Periodic Table. Write the electronic configuration of these two elements. Which of these will be more electronegative? Why?
How were the positions of cobalt and nickel resolved in the modern periodic table?
How does the chemical reactivity of the halogens vary on going in group 17 of the periodic table?
State how the valency of elements varies in a period of the periodic table?
Name two elements in each case: Lanthanides
What is the number of elements in the 3rd period, of the modern periodic table?
Answer the following question.
How it can be proved that the basic structure of the Modern Periodic Table is based on the electronic configuration of atoms of different elements?
State what is meant by the term chemical formula.
How does the property vary in periods and in groups?
The maximum number of electrons that can be accommodated in s, p,d, and f subshells are ______.
