Chemistry, 08.07.2019 13:30, lolmaster101

Why did mendeleev leave blank spaces in his version of the periodic table? mendeleev’s periodic table arranged elements in order of increasing atomic mass; spaces were left for elements not having the correct atomic mass. mendeleev’s periodic table arranged elements in groups of similar chemical properties; spaces were left for elements not having a similar chemical property. 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.

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Why did mendeleev leave blank spaces in his version of the periodic table? mendeleev’s periodic tab...