Period: 6th (p-shell)

The sixth period (p-shell) follows the pattern of the previous periods by filling the 6s- (Cs and Ba), 5d- (La), 4f- (lanthanides), 5d- (Hf–Hg) and 6p-subshells (Tl–Rn).

55Cs

Caesiumpale gold

56Ba

Bariumsilvery gray; with a pale yellow tint

57La

Lanthanumsilvery white

58Ce

Ceriumsilvery white

59Pr

Praseodymiumgrayish white

60Nd

Neodymiumsilvery white

61Pm

Promethiummetallic

62Sm

Samariumsilvery white

63Eu

Europiumsilvery white, with a pale yellow tint; but rarely seen without oxide discoloration

64Gd

Gadoliniumsilvery white

65Tb

Terbiumsilvery white

66Dy

Dysprosiumsilbrig weiß

Holmiumsilvery white

Erbiumsilvery white

Thuliumsilvery gray

Ytterbiumsilvery white; with a pale yellow tint

71Lu

Lutetiumsilvery white

72Hf

Hafniumsteel gray

73Ta

Tantalumgray blue

74W

Tungstengrayish white, lustrous

75Re

Rheniumsilvery-grayish

76Os

Osmiumsilvery, blue cast

77Ir

Iridiumsilvery white

78Pt

Platinumsilvery white

79Au

Goldmetallic yellow

80Hg

Mercuryshiny, silvery liquid

81Tl

Thalliumsilvery white

82Pb

Leadmetallic gray

83Bi

Bismuthlustrous brownish silver

84Po

Poloniumsilvery

85At

Astatineunknown, probably metallic

86Rn

Radoncolorless gas

H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og

Legend

1st (k-shell)2nd (l-shell)3rd (m-shell)4th (n-shell)5th (o-shell)6th (p-shell)7th (q-shell)