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प्रश्न
How many periods and groups are there in the modern periodic table?
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उत्तर
Eighteen groups and seven periods
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संबंधित प्रश्न
How does the electronic configuration of an atom relate to its position in the Modern Periodic Table?
How many periods and groups are there in the long form of periodic table?
Consider the following elements:
Ca, Cl, Na, I, Li, Ba, Sr, K, Br
Separate these elements into three groups (families) of similar properties. State one property in each case on the basis of which you have made your choice.
State how the valency of elements varies in a group of the periodic table?
What is the number of elements is 1st period the modern periodic table?
The horizontal rows in a periodic table are called _____.
Where would you locate the element with electronic configuration 2,8 in the Modern Periodic Table?
Define periods of modern periodic table.
Name two elements that you would expect to show chemical reactions similar to calcium. What is the basis of your choice?
Name the non-metals in the first twenty elements.
