Question

Which inference can be made from the fact that Mendeleev left empty spaces in his periodic table?(1 point)ResponsesHe assumed that atomic masses were not measured accurately.He assumed that atomic masses were not measured accurately.He assumed that properties of elements can change.He assumed that properties of elements can change.He assumed that there were still undiscovered elements.He assumed that there were still undiscovered elements.He assumed that science will cease to advance.

Answer 1

The inference that can be made from the fact that Mendeleev left empty spaces in his periodic table is: **He assumed that there were still undiscovered elements.** Mendeleev believed that the gaps represented elements that had not yet been discovered, which would have properties that could be predicted based on their position in the table.