5.1 Organizing the Elements

Russian chemist who organized elements into a periodic table.

• Lavoisier

• Mendeleev

• Dalton

• Rutherford

A card game used as a model for Mendeleev's periodic table.

• Solitaire

• Poker

• Blackjack

• War

Within a column, the masses _ from top to bottom.

• decrease

• stay the same

• increase

Which scientist developed this periodic table?

• Dalton

• Rutherford

• Mendeleev

• Lavoisier

In Mendeleev's table, elements in the same _ have similar properties.

• row

• column

• mass

Consider Mendeleev's table. Below Al he left a blank for element with mass 68. Which element was later discovered to fill this blank? (Hint: look at your modern periodic table)

• Gallium

• Germanium

• Aluminum

• Uranium

Mendeleev left blanks in his periodic table. He _ that elements would one day be discovered to fill them.

• predicted

• forgot

• misplaced

The element _ was discovered after Mendeleev died. This filled the blank below Al on his periodic table.

• Germanium

• Gallium

• Scandium

• Carbon

An excellent test for the correctness of a scientific model, such as Mendeleev's table, is whether or not it can be used to make accurate _.

• analyses

• measurements

• predictions

In which group are H, Li and Na located?

• Group I

• Group II

• Group V

• Group VI