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प्रश्न
What is the main characteristic of the last element in each period of the periodic table?
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उत्तर
The last element in each period of the periodic table is a gaseous element with its valence shell completely filled. Except for helium, which has a complete duplet configuration, all five gases have a complete octet configuration.
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संबंधित प्रश्न
What is meant by a group, in a periodic table?
where should hydrogen be placed in the modern periodic table? Give reason for your answer.
How many groups and periods does the modern periodic table have?
Name two elements in Inert gas.
Name an element of group 18 which can form compounds.
Give the chemical formula of ammonium sulphate
Distinguish between:
s-block - p-block
Spot the error:
The elements of group 13 are called the carbon family.
Match the atomic number with the following:
An element of group 2.
Give reason for the following:
Inert gases do not form ion.
