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प्रश्न
Match the atomic number with the following:
A rare gas.
पर्याय
19
15
8
4
2
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उत्तर
2
संबंधित प्रश्न
State how the valency of elements varies in a period of the periodic table?
Correct the statement.
Transition elements are placed at extreme right of the periodic table.
Name two elements in each case:
Transition element
Name two elements in each case:
Actinides
Name the type of elements which have two outermost shell incomplete.
What is the main characteristic of the last element in each period of the periodic table?
Give the chemical formula of ammonium sulphate
Name the following:
The group of the Modern Periodic Table to which calcium [Ca2+] belongs.
State the number of elements in Period 1 of the Periodic Table.
Spot the error:
There are 5 periods and 17 groups in the modern periodic table.
