1) Which sub-atomic particles are found in the nucleus? a) Protons b) Neutrons c) Electrons 2) Which sub-atomic particles are found in orbit around the nucleus? a) Protons b) Neutrons c) Electrons 3) The atomic number of an atom tells us the number of... a) Protons b) Neutrons c) Electrons 4) The atomic mass of an atom tells us the number of ... + ... a) Protons b) Neutrons c) Electrons 5) An isotope is an atom with a different number of... a) Protons b) Neutrons c) Electrons 6) An atom of Helium always has 2... a) Protons b) Neutrons c) Electrons 7) The isotope, Carbon-14, has 8... a) Protons b) Neutrons c) Electrons 8) In Thomson's Plum Pudding model of the atom, what do the 'plums' represent? a) Protons b) Neutrons c) Electrons 9) James Chadwick is credited with the discovery of... a) Protons b) Neutrons c) Electrons 10) Which sub-atomic particle would you find in the 'shells'? a) Protons b) Neutrons c) Electrons 11) How many electrons can fit in the first 'shell'? a) 2 b) 8 c) 4 12) How many electrons can fit in the second 'shell'? a) 2 b) 8 c) 4 13) How many electrons can fit in the third 'shell'? a) 2 b) 8 c) 4

Atomic Structure

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