long form of periodic table
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Long form of periodic table is based on atomic number. Atomic number is equal to number of electrons. The table is the arrangement of elements is in increasing order of their atomic numbers.
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The modern periodic table is the present form of the periodic table. And it consists of 18 vertical columns and, norizontal rows.
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modern periodic table consists of 118elements are form. there are 18 periods and horizontal line. in periodic table divided into metal, non metal and metalloids.
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