ECP -Chpt 1 -Atomic Theory and Structure

Front

Where is most of the mass of an atom located?

Back

inside the nucleus

Front

Metals

Back

Can be found on the left hand side of the periodic table

Front

List the 3 subatomic particles with their charges and location in the atom

Back

Proton - Positively charged - Located in the nucleus; Neutron - Neutral charge - Located in the nucleus; Electron - Negatively charged - located around nucleus

Front

How do you find the number of neutrons in an atom?

Back

To find this number you need to take the atomic mass number and subtract the number of protons

Front

JJ Thomson

Back

Discovered the electron and created the plum pudding model

Front

Atom

Back

Smallest particle of an element

Front

Electron

Back

Subatomic particle, negative charge

Front

Nucleus

Back

Center of an atom

Front

Proton

Back

A subatomic particle, positive charge

Front

Neutron

Back

A subatomic particle, no charge