All isotopes of the same element have ______________
A). Different atomic numbers and different atomic mass
B). Different atomic numbers and the same atomic mass
C). The same atomic number but different atomic masses
D). The same atomic number and the atomic mass
What particles move around the nucleus of an atom and are negatively charged?
A). Electrons
B). Protons
C). Positrons
D). Neutrons
J.J. Thomson’s proposed model of atom is generally called ________ model.
A). Cream and cake
B). Plum and pudding
C). Plum and cake
D). Cream and pudding
The fundamental particles present in the nucleus of an atom are
A). Electron, proton
B). Proton, neutron
C). Neutron, electron
D). Neutron, positron
All isotopes of the same element have ________
A). Different atomic numbers and different atomic mass
B). Different atomic numbers and the same atomic mass
C). The same atomic number but different atomic masses
D). The same atomic number and the atomic mass