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Question
What is the main characteristic of the last elements in the periods of a periodic table? What is the general name of such elements?
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Solution
The last elements of each period have their outermost shell complete, i.e. 2 or 8 electrons. Main characteristics of the last element in each period of the Periodic Table are:
- They have valency equal to zero.
- They react under very special condition otherwise they don't react.
- They have stable gas electronic configuration.
- The general name is inert gases or noble gases.
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RELATED QUESTIONS
Write the names from the description.
Two elements having valency 4.
Match column A with column B.
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Column A |
Column B |
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(a) Element short by 1 electron in octet |
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