Periodic Table Intro

Why is the periodic table considered a significant achievement?

• Because it was created by a famous artist.

• Because it represents a massive slab of human genius.

• Because it is a trendy icon.

• Because it is found on t-shirts and coffee mugs.

What was the significance of the dash in Mendeleev's periodic table?

• It represented an undiscovered element.

• It indicated a mistake.

• It was a decorative element.

• It showed the end of the table.

What did Mendeleev predict about eka-aluminum?

• It would not conduct heat.

• It would be a non-metal.

• It would be a gas at room temperature.

• It would have an atomic weight of 68.

Which element was discovered that matched Mendeleev's prediction of eka-aluminum?

• Germanium

• Scandium

• Gallium

• Technetium

What exclusive honor did Mendeleev receive posthumously?

• An element named after him

• A university named after him

• A Nobel Prize

• A statue in his honor