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प्रश्न
Noble gases belong to______ group of the periodic table.
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उत्तर
Noble gases belong to 18th group of the periodic table.
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संबंधित प्रश्न
The three elements having chemical symbols of Si, B and Ge are:
(a) all metals
(b) all non-metals
(c) all metalloids
(d) Si is metalloid, B is metal and Ge is non-metal
State whether the following statement is true or false:
On going down in a group of the periodic table, the number of valence electrons increases.
What happens to the number of valence electrons in the atoms of elements as we go down in a group of the periodic table?
In the modern Periodic Table, why does cobalt with higher atomic mass of 58.93 appear before nickel having lower atomic mass of 58.71?
What are the periods in a periodic table? Give two characteristics of each.
How many groups and periods does the modern periodic table have?
Answer the following in respect of element `31/15 P`
Give its electronic configuration
What is the number of elements in the 1st period?
The element which has the least tendency to lose electrons is ______
On moving from left to right in a period in the periodic table, the size of the atom ______
