Atomic Theory and Structure

Which particle has a positive charge?

• Proton

• Neutron

• Electron

Which particle has no charge?

• Proton

• Neutron

• Electron

Which particle has a negative charge?

• Proton

• Neutron

• Electron

Which particles are found outside the nucleus?

• Proton

• Neutron

• Electron

Which particle is so small that it doesn't contribute to the mass?

• Proton

• Neutron

• Electron

How many kinds of atoms are there?

• 100

• 118

• 128

Each specific kind of atom is called ....

• Atomic Number

• Atomic Mass

• Element

Who introduced the word atomos?

• Bohr

• Rutherford

• Democritus

The scientist that shot alpha particles into a piece of gold foil?

• Bohr

• Rutherford

• Schrodinger

His model is similar to a chocolate chip cookie/plum pudding

• Bohr

• Dalton

• Thomson