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प्रश्न
How were elements arranged in the long form of the periodic table or the Modern Periodic Table?
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उत्तर
Long-form of periodic table elements were arranged in increasing order of atomic number.
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संबंधित प्रश्न
What are the groups in a periodic table? Give two characteristics of each.
What do you understand by typical elements?
The electronic configuration of an element T is 2, 8, 8, 1.
- What is the group number of T?
- What is the period number of T?
- How many valence electrons are there in an atom of T?
- What is the valency of T?
- Is it a metal or a non-metal?
State the modern periodic law for the classification of elements. How many (i) groups and (ii) periods are there in the modern periodic table?
How many periods and groups are there in the modern periodic table?
Fill in the blank:
The element lithium in the Modern Periodic Table with valency 1+ belongs to the group ______.
Find the correlation:
Group 1 and 2 : s block : : group 13 and 18 : ______
Give the criteria on the basis of which elements are placed (i) in a group and (ii) in a period in the modern periodic table. The atomic number of an element is 16. According to the criteria, in which group and period it should be placed?
An element belonging to 3d series of modern periodic table has spin magnetic moment = 5.92 B.M. in +3 oxidation state. The atomic number of elements are ______.
Answer the following in respect of element \[\ce{_16^32S}\].
- Give its electronic configuration.
- To which group and period does it belon?
- What is its valency?
- Is it a metal or a non-metal?
- Is it a reducing agent or an oxidising agent?
- Give its formula with hydrogen.
