Why did mendeleev leave blanks in his early version of the periodic table?

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asked Jul 10, 2018 226k views

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Bianchi · Answer 1 · 2018-07-15T14:15:33+0000

Answer:

The answer is C

Step-by-step explanation:

Mendeleev’s periodic table arranged elements in order of increasing atomic mass; it was noticed that chemical properties repeated. Mendeleev predicted an element had not been discovered to fit the space.

Why did mendeleev leave blanks in his early version of the periodic table?

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