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21 Cards in this Set

  • Front
  • Back
left to right: increases (minus last group)
up to down: increases
(toward Rn)
Ionization Energy
left to right: increases
up to down: decreases
(toward F)
Melting Point
left to right: increases, then decreases at center
up to down: random
(toward Co)
left to right: increases
up to down: decreases
(toward F)
Electron Affinity
left to right: increases (starting at second group)
up to down: decreases
(toward F)
Atomic Radius
left to right: decreases
up to down: increases
(toward Fr)
Group 1
H, Li, Na, K, Rb, Cs, Fr
alkali metals
Group 2
Be, Mg, Ca, Sr, Ba, Ra
alkali earth metals
Group 3
B, Al, Ga, In, Tl
Group 4
C, Si, Ge, Sn, Pb
Group 5
N, P, As, Sb, Bi
Group 6
O, S, Se, Te, Po
Group 7
F, Cl, Br, I, At
Group 8
He, Ne, Ar, Kr, Xe, Rn
noble gases
diatomic elements
H, N, O, F, Cl, Br, I
two valence electrons in outer shell
H, He, Li, Be, B
atomic number
number of protons in nucleus
for neutral atom, also number of electrons
mass number
number of protons in nucleus + number of neutrons in nucleus, weighted based on prevalence of various isotopes in nature
Non-Metals (elements)
hydrogen, helium, carbon, nitrogen, oxygen, fluorine, neon, phosphorus, sulfur, chlorine, argon, selenium, bromium, krypton, iodine, xenon, radon
Metalloids (elements)
boron, silicon, germanium, arsenic, antimony, tellurium, polonium, astatine
Metals (elements)
everything to the left of the "staircase"