The discovery of _____ with properties similar to aluminum and silicon respectively provided convincing evidence in support of Mendeleev's arrangement of the elements.

Question

Quizplus · Accepted Answer

Gallium and germanium have properties similar to aluminum and silicon, respectively, and their discovery and placement in the periodic table confirmed Mendeleev's periodic law. Scandium and titanium were discovered later and do not have as strong a connection to Mendeleev's original predictions. Technetium and rubidium are not similar to aluminum or silicon and were discovered much later than Mendeleev's time. Selenium and iodine have little connection to Mendeleev's periodic table, and neon and krypton are noble gases with very different properties.

The Discovery of _____ with Properties Similar to Aluminum and Silicon