Atomic Theory--Gen Chem

Which particle carries a negative charge?

• Electron
• Neutron
• Proton

Which particle carries a positive charge?

• Electron
• Neutron
• Proton

With the gold foil experiment, Rutherford concluded that...

• atoms were mostly empty space

• atoms contained no charged particles

• electrons were in the nucleus

• protons were in orbitals

Which 2 particles have about the same mass and contribute the entire mass of the atom?

• protons & neutrons

• neutrons and electrons

• protons and electrons

Tags

NGSS.MS-PS1-1

Who is known for the discovery of electrons?

• Bohr

• Rutherford

• J.J. Thompson

• Dalton

Who placed electrons into energy levels?

• Bohr

• Rutherford

• J.J. Thompson

• Dalton

Tags

NGSS.HS-PS1-1

Ernst Rutherford discovered which part of the atom through the use of gold foil?

• Proton
• Neutron
• Electron
• Orbitals

Tags

NGSS.HS-PS1-8

What scientist is best known for his "Plum Pudding" model of the atom?

• J.J. Tomson
• Ernest Rutherford
• John Dalton
• Democritus

Tags

NGSS.MS-PS1-1

What does "atomos" mean?

• easily divided
• unable to be divided
• really small
• sometimes divided

Tags

NGSS.MS-PS1-1

This particle is found in the nucleus and has no charge

• Neutron
• Proton
• Electron