Mendeleev and the Periodic Table

When did Mendeleev post his first version of the Periodic Table?

• 1869

• 1969

• 1863

• 1963

Which elements did Dmitri predict accurately?

• Scandium, Gallium, and Sodium.

• Barium, Germanium, and Boron.

• Gallium, Germanium, Scandium

• Boron, Barium, and Sodium.

What is the element with an Atomic weight of 39.098?

• Phosphorus

• Lanthanum

• Sulfur

• Potassium

What was Dmitri's nationality?

• Russian

• American

• European

• Asian

Who remade the periodic table?

• Rick Baesley

• Henry Moseley

• Christopher Aisenvult

• Albert Ghiorso

At which school did Dmitri Mendeleev originally teach at?

• Rochester University.

• Cornell University

• Liafet university

• St. Petesburg university

Which atom did Dimitri use in reference to other to get the atomic mass of missing elements?

• Oxygen

• Hydrogen

• Nitrogen

• Sodium

Why is the Periodic table called the "Periodic table"

• Because of the groups of classification called "Periods"

• Because Periodically new elements are discovered.

• Because elements periodically have similar properties.

• Because there are periods of the table in which the elements are the same.

What type of element is hardest to predict?

• Radiant

• Gas

• Man-made

• Radiated

What is atomic number based on?

• Protons

• Neutrons

• Electrons

• Atoms