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✨Here is your answer✨
In 1869, a Russian chemist Dimitri I Mendeleev stated the law of chemical periodicity that is
The physical and chemical properties of elements are periodic functions of their atomic mass.
The periodic table is proposed by Mendeleev in 1872.Mendeleev's Periodic table contained only 63 elements.
In this table, there were six periods (horizontal rows) and eight groups (vertical columns).
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✨Here is your answer✨
In 1869, a Russian chemist Dimitri I Mendeleev stated the law of chemical periodicity that is
The physical and chemical properties of elements are periodic functions of their atomic mass.
The periodic table is proposed by Mendeleev in 1872.Mendeleev's Periodic table contained only 63 elements.
In this table, there were six periods (horizontal rows) and eight groups (vertical columns).
♠️Hope it helps you ♠️
☺️ Thank you☺️
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