Physical Science Chapter 3 Test Review

Largest

Potassium-39 and Potassium-41 have the same number of

Smallest

JJ Thomson's model

Determines the element of the atom

Proved atoms were divisible

Ion with more protons than neutrons

Suggested matter existed in the form of very small indivisible particles

Negative charge

Copper-63 and Copper-65 have the same number of

Suggested that electrons move in a district, spherical orbit at a distinct distance from the nucleus

Isotopes have the same number of protons

The Bohr model is the most workable today

Weighted average

Ion with less protons than neutrons

Positively and negatively charged atom

The earliest record of particle theory can from the

An atom with differing numbers of neutrons

Protons have no electrical charge

Thomson discovered

Positive charge

No electrical charge

The atomic number is the unique number of protons in the atom

The discovery of electrons proves atoms are not indivisible

Most of an atom is empty space

Carbon-14 and Copper-12 have different numbers of