Brainlies ! 1. two different sub-atomic particles are described below: particle y: carries a positive charge particle z: orbits the nucleus which statement is true? y is an electron and z is a proton. y is a proton and z is an electron. y is an electron and z is a neutron. y is a proton and z is a neutron. 2. which two particles are present in the nucleus of an atom? electrons and neutrons electrons and molecules protons and neutrons protons and electrons