lesson 1

What does the greek term "atomos" mean?

• not able to be bonded

• not able to be distributed

• not able to be divided

• not able to be an ion

Matter is made up of ...

• atoms

• ions

• nucleus

• chemical bonds

An element is the smallest particle

• True

• False

A penny contains about ..... atoms

Who developed the atomic theory?

What did Dalton's theory state?

J.J Thomson discovered

• protons

• neutrons

• nucleus

• electrons

Bohr discovered the nucleus and protons

• true

• false

a small, dense center that has a positive charge surrounded by the moving electrons

• protons

• electrons

• nucleus

Bohr agreed to who's studies

• Rutherford

• Chadwick

• Mendleev

• Dalton