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Unit 3a vocab

quantum numbers, ions, nuclear

principle quantum numberdistance e- is from nucleus
orbital quantum numbershape of electron cloud
magnetic quantum numberposition of cloud around a 3D axis
spin quantum numberdirection of electron spin
ionization energyadded to remove an electron
electron affinityenergy released when an electron is added
electron configurationshows all e's and position
electron dotshows only outer shell electrons
orbital notationshows all e's, position and spin
valenceouter shell electrons
kernelinner electrons and nucleus
isotopedifferent mass and neutrons than atom
ioncharged particle
cationpositive ion
anionnegative ion
hybridizationmove an s electron to a d to make 5 or 10 (makes stable))
half lifeamount of time needed for half of the atoms to decompose
fissionsplitting an atom into 2 smaller more stable pieces
fusionjoining 2 nuclei into a bigger atom
alpha decaytransforms (or 'decays') into an atom with a mass number 4 less and atomic number 2 less, weak radiation
beta decay(an electron or a positron) is emitted from an atomic nucleus
atomic massprotons plus neutrons
atomic numbernumber of protons
protonpositive subatomic particle
electronnegative subatomic particle
neutronneutral subatomic particle
sspherical shaped 1 room
pdumb-bell shaped 3 rooms
d5 rooms
f7 rooms
order of filling1s,2s,2p,3s,3p,4s,3d,4p,5s,4d,5p,6s.....
quantum numbersmathematical expressions that tell the energy state of an atom
octetcomplete outer shell
octet ruletry to become like a noble gas (have an octet)
POMSthe 4 quantum numbers
Schrodingerfounder of quantum theory
1st floorK
gamma decayelectromagnetic radiation produced by the decay from high energy states of atomic nuclei

Academic chemistry
Saint Michaels High School

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