Exploring Atomic Structure and Antimatter

What was the main conclusion of Rutherford's gold foil experiment?

• Atoms are solid spheres with no internal structure

• Atoms have a small, dense, charged nucleus

• Electrons are found only in the nucleus

• Most of the atom's mass is in the electron cloud

In Rutherford's gold foil experiment, what was observed when alpha particles were directed at the gold foil?

• All alpha particles passed straight through without deflection

• Most alpha particles passed through, but some were deflected at large angles

• All alpha particles bounced back

• Alpha particles were absorbed by the foil

Which subatomic particle is found in the nucleus and has no electric charge?

• Proton

• Electron

• Neutron

• Positron

What is the relative mass of a proton compared to an electron?

• About 1/1836

• About 1

• About 1836

• About 0

Which of the following is NOT a fundamental particle in the Standard Model?

• Quark

• Lepton

• Proton

• Boson

Which particle is the antiparticle of the electron?

• Neutrino

• Positron

• Antiproton

• Muon

What is the charge of an antiproton?

• +1

• 0

• -1

• +2

Which of the following statements about antimatter is correct?

• Antimatter has the same mass but opposite charge to its corresponding matter particle

• Antimatter has no mass

• Antimatter is heavier than matter

• Antimatter cannot interact with matter

Which equation expresses the energy-mass equivalence as described by Einstein?