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प्रश्न
How many periods and groups are there in the modern periodic table?
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उत्तर
Eighteen groups and seven periods
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संबंधित प्रश्न
Name the type of elements which have one electron short of octet.
How does the electronic configuration of an atom relate to its position in the modern periodic table?
State the main aim of classifying elements. Which is the more fundamental property of elements that is used in the development of Modern Periodic Table? Name and state the law based on this fundamental property. On which side of the periodic table one can find metals, non-metals and metalloids?
Give the symbol and valency of the following element and radical.
Nitrogen [Nitride]
Right or wrong sentence.
The modern periodic table shows the molecular masses of the elements in each frame.
p-block is composed of groups 1 and 2.
“Hydrogen occupies a unique position in Modern Periodic Table”. Justify the statement.
The maximum number of electrons that can be accommodated in s, p,d, and f subshells are ______.
1H2 is an isotope of hydrogen. In the modern Periodic Table it will ______.
Answer the following in respect of element \[\ce{_16^32S}\].
To which group and period does it belong?
