Question

element are calssified on the basis of their atomic number true or false
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Answer 1

Answer:

true

Explanation:

In Mendeleev's periodic table, elements were arranged on the basis of the fundamental property, atomic mass and chemical properties. ... He arranged the elements such that elements with similar properties fell into same vertical columns of periodic table

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Answer 2

Answer:

yes according to the modern periodic table they are classified on the basis of their atomic number.it is true