1
Question
The number of elements known in Mendeleev's presented periodic table is:
The number of elements known in Mendeleev's presented periodic table is:
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Solution
The correct option is C 63
In Mendeleev’s periodic
table, elements were placed based on the atomic mass, and chemical
properties. During Mendeleev’s work, only 63 elements were found. After
studying the properties of all elements, he found that the properties of
elements were related to atomic mass.
Hence, correct option is C.
In Mendeleev’s periodic
table, elements were placed based on the atomic mass, and chemical
properties. During Mendeleev’s work, only 63 elements were found. After
studying the properties of all elements, he found that the properties of
elements were related to atomic mass.
Hence, correct option is C.
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