d and f BLOCK ELEMENTS

What did Mendeleev prioritize when placing iodine in Group VII instead of with tellurium?

• Lower atomic weight
• Higher atomic weight
• Similar properties
• Its position alphabetically

Which scientist's work showed a periodically repeated pattern, but noted changes in its length?

• John Newlands
• Dmitri Mendeleev
• Johann Dobereiner
• Lothar Meyer

What did Mendeleev's table resemble when it was published in 1905?

• Dobereiner's Triads
• Newlands' Octaves
• A list of elements
• The Modern Periodic Table

Why is Mendeleev often credited over Meyer for the periodic table?

• Meyer's table was incorrect.
• Mendeleev was more famous.
• Mendeleev published his work first.
• Meyer did not predict new elements.

What did Mendeleev do with elements that had similar properties?

• He placed them in the same horizontal row or period.
• He placed them diagonally across the table.
• He placed them in the same vertical column or group.
• He separated them to highlight differences.