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What is periodic table? or Define periodic table
Jan 21, 2014
Jan 31, 2014
to answer this question.
Apr 17, 2017
Periodic table is an arrangement of chemical elements in tabular form. The elements are arranged in tabular form based on their atomic number.
means number of protons present in the element. Electronic configuration and chemical properties are also considered during arrangement of chemical elements in the form of table.
All elements are arranged from 1 to 118 based on their atomic number and chemical properties.
These horizontal rows of the elements are arranged based on atomic number. The horizontal rows called
The columns of the elements called
all these comes under same chemical behaviour for example: group 17 elements called halogens and group 18 elements called noble gases.
The elements having approximately similar chemical properties considered in four rectangular
Up to now 118 elements are discovered or synthesised. The arrangements of the elements done in
What is Periodic Table ?
What is trend in properties of elements in periodic table while crossing from top to bottom ?
What are new elements in periodic table?
What are the trend in properties of elements while crossing the periodic table from left to right?
Who recognized the periodic table first?
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