Exploring Dalton's Atomic Theory

The video tutorial covers John Dalton's contributions to atomic theory, explaining that all matter is composed of atoms, which are indivisible and cannot be created or destroyed. It discusses the properties of atoms, including their size, mass, and chemical properties, and how atoms of different elements differ. The tutorial also explains how atoms combine in fixed ratios to form compounds and how they rearrange during chemical reactions without changing into atoms of other elements.

Who was John Dalton?

• An American biologist

• A German physicist

• An English scientist

• A French chemist

What are atoms of a given element identical in?

• Weight and volume

• Size, mass, and chemical properties

• Temperature and pressure

• Color and shape

How do atoms of different elements differ?

• In their weight and volume

• In their temperature and pressure

• In their size, mass, and chemical properties

• In their color and shape

What happens to atoms in a chemical reaction?

• They change into atoms of another element

• They are created

• They are destroyed

• They get rearranged

Tags

NGSS.MS-PS1-5

How do atoms combine to form compounds?

• In fixed whole number ratios

• In varying proportions

• In equal parts

• In random ratios

Tags

NGSS.MS-PS1-1