Elements Database

Metals							Metalloids		Nonmetals
Alkali-metal	Alkaline earth metal	Lanthanide	Actinide	Transition metal	Post-transition metal		Metalloid		Polyatomic nonmetal	Diatomic nonmetal	Noble gas

Choose the element

Hydrogen

1.008

H I 656.28 nm

Helium

4.003

He I 587.58 nm

He I 388.87 nm

Lithium

6.940

            Li I 323.26 nm
        
            Li I 670.78 nm
        
            Li I 610.36 nm

Beryllium

9.012

            Be II 234.86 nm
        
            Be II 467.34 nm
        
            Be II 313.04 nm

Boron

10.810

B II 345.10 nm

B I 249.77 nm

Carbon

12.011

            C I 396.84 nm
        
            C I 247.88 nm
        
            C I 193.09 nm

Nitrogen

14.007

            N II 500.51 nm
        
            N II 444.70 nm
        
            N I 746.84 nm
        
            N I 821.07 nm

Oxygen

15.999

            O I 777.19 nm
        
            O I 777.42 nm
        
            O I 777.54 nm
        
            O I 777.19 nm

Fluorine

18.998

            F I 685.60 nm
        
            F I 687.02 nm
        
            F I 690.25 nm
        
            F I 690.98 nm

Neon

20.180

Sodium

22.990

Na I 589.00 nm

Na I 589.59 nm

Magnesium

24.305

            Mg I 285.21 nm
        
            Mg II 279.55 nm
        
            Mg II 279.81 nm
        
            Mg II 280.27 nm

Aluminium

26.982

            Al I 308.24 nm
        
            Al I 309.31 nm
        
            Al I 394.41 nm
        
            Al I 396.15 nm

Silicon

28.085

            Si I 288.17 nm
        
            Si I 390.55 nm
        
            Si I 243.51 nm
        
            Si I 251.61 nm

Phosphorus

30.974

            P I 253.57 nm
        
            P I 255.33 nm
        
            P I 213.62 nm
        
            P I 214.92 nm

Sulfur

32.060

            S II 545.40 nm
        
            S I 869.46 nm
        
            S I 180.73 nm

Chlorine

35.450

Cl I 837.59 nm

Argon

39.948

            Ar I 696.54 nm
        
            Ar I 706.72 nm
        
            Ar I 763.51 nm

Potassium

39.098

            K I 766.49 nm
        
            K I 769.89 nm
        
            K I 404.41 nm

Calcium

40.078

            Ca I 422.67 nm
        
            Ca II 315.92 nm
        
            Ca II 317.96 nm
        
            Ca II 393.00 nm

Scandium

44.956

Sc II 361.38 nm

Titanium

47.867

            Ti II 323.50 nm
        
            Ti II 334.90 nm
        
            Ti II 334.94 nm
        
            Ti I 498.17 nm

Vanadium

50.942

V I 437.92 nm

V I 411.18 nm

Chromium

51.996

            Cr I 267.70 nm
        
            Cr I 425.44 nm
        
            Cr I 427.48 nm
        
            Cr I 520.60 nm

Manganese

54.938

            Mn II 294.90 nm
        
            Mn I 403.06 nm
        
            Mn I 403.31 nm
        
            Mn I 403.45 nm

Iron

55.845

            Fe I 302.06 nm
        
            Fe I 404.58 nm
        
            Fe I 427.18 nm

Cobalt

58.933

            Co I 345.37 nm
        
            Co I 351.03 nm
        
            Co II 241.62 nm

Nickel

58.693

            Ni I 341.48 nm
        
            Ni I 349.30 nm
        
            Ni I 352.44 nm
        
            Ni I 361.94 nm

Copper

63.546

            Cu I 324.74 nm
        
            Cu I 327.40 nm
        
            Cu I 406.27 nm
        
            Cu I 521.83 nm

Zinc

65.380

            Zn I 330.25 nm
        
            Zn I 334.50 nm
        
            Zn I 472.22 nm
        
            Zn I 481.06 nm

Gallium

69.723

            Ga I 417.20 nm
        
            Ga I 294.37 nm
        
            Ga I 403.32 nm
        
            Ga I 287.44 nm

Germanium

72.630

            Ge I 303.92 nm
        
            Ge I 422.68 nm
        
            Ge I 270.98 nm
        
            Ge I 265.14 nm

Arsenic

74.922

            As I 234.98 nm
        
            As I 286.04 nm
        
            As I 278.02 nm

Selenium

78.971

Bromine

79.904

Br I 827.20 nm

Krypton

83.798

Rubidium

85.468

Rb I 780.03 nm

Strontium

87.620

Sr II 407.78 nm

Sr II 421.55 nm

Yttrium

88.906

Y II 371.03 nm

Y I 467.49 nm

Zirconium

91.224

Niobium

92.906

Nb I 405.89 nm

Molybdenum

95.950

            Mo I 384.40 nm
        
            Mo I 386.41 nm
        
            Mo I 550.65 nm

Technetium

Tc I 429.71 nm

Ruthenium

101.070

Ru I 290.89 nm

Rhodium

102.906

Rh I 339.68 nm

Rh I 343.49 nm

Palladium

106.420

Pd I 340.46 nm

Pd I 351.69 nm

Silver

107.868

            Ag I 328.08 nm
        
            Ag I 338.31 nm
        
            Ag I 520.93 nm
        
            Ag I 546.57 nm

Cadmium

112.414

            Cd I 228.80 nm
        
            Cd I 326.10 nm
        
            Cd I 508.56 nm
        
            Cd I 361.05 nm

Indium

114.818

In I 451.13 nm

Tin

118.710

            Sn I 286.35 nm
        
            Sn I 303.43 nm
        
            Sn I 284.02 nm

Antimony

121.760

Sb I 259.80 nm

Sb I 323.25 nm

Tellurium

127.600

            Te I 253.08 nm
        
            Te I 238.34 nm
        
            Te I 238.59 nm

Iodine

126.904

I I 746.90 nm

Xenon

131.293

Caesium

132.905

Cs I 852.11 nm

Barium

137.327

            Ba I 553.55 nm
        
            Ba II 455.39 nm
        
            Ba II 413.07 nm
        
            Ba I 389.19 nm

Lanthanum

138.905

            La I 394.91 nm
        
            La II 333.75 nm
        
            La II 338.09 nm

Cerium

140.116

            Ce I 560.13 nm
        
            Ce I 569.70 nm
        
            Ce II 457.23 nm
        
            Ce II 394.28 nm

Praseodymium

140.908

            Pr II 417.94 nm
        
            Pr II 410.07 nm
        
            Pr I 495.14 nm
        
            Pr II 391.89 nm

Neodymium

144.242

            Nd II 430.36 nm
        
            Nd I 489.69 nm
        
            Nd I 488.38 nm
        
            Nd II 423.24 nm

Promethium

Samarium

150.360

            Sm I 491.04 nm
        
            Sm I 476.03 nm
        
            Sm I 551.61 nm
        
            Sm II 392.24 nm

Europium

151.964

            Eu I 466.19 nm
        
            Eu I 462.72 nm
        
            Eu II 443.56 nm
        
            Eu II 397.20 nm

Gadolinium

157.250

            Gd II 367.12 nm
        
            Gd II 409.86 nm
        
            Gd I 419.08 nm

Terbium

158.925

Tb II 384.87 nm

Dysprosium

162.500

Dy II 353.17 nm

Holmium

164.930

Erbium

167.259

Er II 349.91 nm

Thulium

168.934

Tm I 388.31 nm

Ytterbium

173.045

            Yb I 398.80 nm
        
            Yb II 369.42 nm
        
            Yb II 328.94 nm

Lutetium

174.967

Lu II 291.14 nm

Hafnium

178.490

Hf I 368.24 nm

Hf I 417.46 nm

Tantalum

180.948

Ta I 468.21 nm

Ta II 240.06 nm

Tungsten

183.840

            W II 259.87 nm
        
            W I 429.46 nm
        
            W II 434.81 nm
        
            W I 505.33 nm

Rhenium

186.207

            Re I 346.05 nm
        
            Re I 488.91 nm
        
            Re I 451.33 nm
        
            Re I 527.56 nm

Osmium

190.230

Iridium

192.217

Platinum

195.084

Pt I 274.76 nm

Pt I 396.63 nm

Gold

196.967

            Au I 312.29 nm
        
            Au I 267.59 nm
        
            Au I 242.80 nm

Mercury

200.592

Hg I 253.65 nm

Hg I 435.83 nm

Thallium

204.380

Tl I 535.05 nm

Lead

207.200

Pb I 368.37 nm

Pb I 405.81 nm

Bismuth

208.980

            Bi I 306.77 nm
        
            Bi I 302.46 nm
        
            Bi I 298.90 nm
        
            Bi I 293.83 nm

Polonium

Astatine

Radon

Francium

Radium

Actinium

Thorium

232.038

            Th II 411.67 nm
        
            Th II 438.19 nm
        
            Th II 439.11 nm

Protactinium

231.036

Uranium

238.029

            U II 409.01 nm
        
            U II 454.36 nm
        
            U II 367.01 nm

Neptunium

Plutonium

Americium

Curium

Berkelium

Californium

Einsteinium

100

Fermium

101

Mendelevium

102

Nobelium

103

Lawrencium

104

Rutherfordium

105

Dubnium

106

Seaborgium

107

Bohrium

108

Hassium

109

Meitnerium

110

Darmstadtium

111

Roentgenium

112

Copernicium

113

Nihonium

114

Flerovium

115

Moscovium

116

Livermorium

117

Tennessine

118

Oganesson

VIIIA