IB SL Physics Unit 7. Atomic, Nuclear, and Particle Physics

what are the six quarks

subatomic particle which makes up protons and neutrons, among others

what are the six leptons

category of subatomic particle which includes electron

what are the six force exchange particles

something made of THREE quarks

something made of quarks

quark composition of a neutron

quark composition of a proton

something with one quark and one antiquark

made of quarks and leptons, non-integer spin

make of force exchange particles and quarks, integer spin

all particles have associated _________ which possess the opposite ________ and ________

the ______, ________ number, ________ number, and _____________ must be conserved

The difference between the mass of an atom and its constituent parts’ mass

the amount of work required to separate the nucleons inside the nucleus

happens within unstable nuclei (are too big or the neutron/proton ratio is too large/small)

radioactivity is both _______ and _________

it [can/can’t] be predicted when a specific nucleus will decay

time it takes for half of a substance to decay

the same element with varying neutrons

the four types of radioactivity

this type of decay occurs with large nuclei >82 protons

for alpha decay, release an _______ __________ and change the _________

occurs when the neutron/proton ratio is too high

for beta- decay, the mass number stays the _______, the ________ number increases, and add an _______________

subatomic particle associated with beta- decay

for beta+ decay, the mass number stays the _______, the ________ number increases, and add an _______________

occurs when neutron/proton ratio is too low

subatomic particle associated with beta+ decay

occurs in conjunction with other types when excess energy exists

conducted the gold foil experiment

gold foil experiment - hit gold foil with _______ particles to see if any would bounce back, discovered the small _________-charged ________

who discovered the electron energy levels

for feynman diagrams, matter has arrows [forward/backward] in time, antimatter has arrows [forward/backward] in time