Which particle or particles found in atoms have larger mass?
A proton only
B Electron only
C proton and neutron
D proton and electron
Which of the following particles has a negative charge?
A electron
B proton
C neutron
D electron and neutron
Which of the following particles has a positive charge?
D electron and proton
Which of the following pairs of particles will exert an attractive electrical force on each other?
A proton and electron
B proton and neutron
C electron and neutron
D proton, neutron, and electron
Which of the following pairs of particles will exert a repulsive electrical force on each other?
A All like particles (proton-proton, electron-electron, neutron-neutron) will repel.
B Only electrons will repel each other.
C Only protons will repel each other.
D Electrons will repel electrons and protons will repel protons.
Which fundamental force is most important in binding electrons to nuclei?
A gravitational
B electric
C strong
D weak
