Atomic Theory Quiz

Which philosopher proposed that matter is composed of four elements: earth, water, air, and fire?

• Empedocles

• Aristotle

• Democritus

• Lavoisier

What did Democritus believe matter was made of?

• Four elements

• Energy

• Continuous substance

• Tiny indivisible particles

What was the continuous substance Aristotle believed in called?

• Phlogiston

• Heil

• Atomos

• Ether

Which law did Antoine Lavoisier introduce?

• Law of Universal Gravitation

• Law of Multiple Proportions

• Law of Conservation of Mass

• Law of Definite Proportions

What does the law of definite composition state?

• Atoms are indivisible

• Elements combine in fixed ratios by mass

• Matter can be created or destroyed

• Gases have the same volume

According to Dalton, how do atoms combine to form compounds?

• In complex ratios

• In simple whole-number ratios

• In any ratio

• In equal volumes

What is the law of multiple proportions?

• Atoms can be created or destroyed

• Atoms combine in simple whole-number ratios

• Atoms combine in fixed ratios

• Atoms are indivisible

What did Joseph Gay-Lussac observe about gas volumes?

• They are constant

• They are inversely proportional

• They react in simple whole-number ratios

• They are always equal

What did Avogadro propose about equal volumes of gases?

• They have different numbers of particles

• They have the same number of particles

• They have the same mass

• They have different masses

Which model of the atom did Dalton propose?

• Quantum model

• Plum pudding model

• Billiard ball model

• Nuclear model