Multiple ChoiceIn a simplified model of the atom, which subatomic particles account for most of the atom's mass?2views
Multiple ChoiceIn an atom, the major portion of the atom's mass consists of which subatomic particles?1views
Multiple ChoiceIn a simplified model of subatomic particles, what electric charge does a proton have?2views
Multiple ChoiceIn the simplified model of subatomic particles, what is the electric charge of a proton?3views