Isotopes are atoms of the same element that contain different numbers of neutrons and thus have different mass numbers. The test below was prepared to help you get an idea of thaw to expect in the quiz that is coming up on atoms. Give it a shot and all the best!
Chadwick
Aristotle
Democritus
Odysseus
Earth, glass, rock, fire
Wind, water, fire, earth
Electricity, fire, earth, rock
Water, wind, sun, trees
Electron
Proton
Neutron
Isotope
Cathode ray
Bohr model
Gold foil
Plum pudding
Quark
Idotope
Neutrons
Isotope
True
False
False
True
True
False
Yes
No
Average mass unit
Atomic mole unit
Atomic mass unit