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प्रश्न
Name the type of elements which have outermost shell complete.
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उत्तर
Noble gases
संबंधित प्रश्न
Fill in the following blank with suitable word:
Group 17 elements are known as ...............
How many periods and groups are there in the long form of periodic table?
What are the periods in a periodic table? Give two characteristics of each.
Name two elements in each case:
Actinides
Give the symbol and valency of the following element and radical.
Hydrogen
Give the symbol and valency of the following element and radical.
Ammonium
Find the odd one out and give its explanation.
Distinguish between:
Group 17 - Group 18
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.
It has variable valency and is a member of the Oxygen family (group 16).
