1) Which of the following is a nucleon? a) Electron b) Positron c) Neutrino d) Proton 2) Which force is repulsive bellow 0.5 fm and attractive up to 3-4 fm? a) Gravity b) Strong Nuclear Force c) Weak Nuclear Force d) Electromagnetisim 3) Which of the following is a uranium isotope? a) A=238 , Z=90 b) A=238, Z=89 c) A=238, Z=92 d) A=238, Z=85 4) Which type of decay produces an antineutrino? a) Alpha b) Beta minus c) Beta plus d) Gamma 5) What is the specific charge of an alpha particle? a) 4.79x10[7] b) 4.79x10[-7] c) 3.2x10[-19] d) 3.2x10[19]

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