'\) )

PERIODIC TABLE OF THE ELEMENTSTable of Selected Radioactive Isotopes

Selected Radioactive IsotopesNaturally occurring radioactive Isotopes are designated by a massnumber in blue (although some are also manufactured). Letter mm-dicates an isomer of another Isotope of the same mass number.Half-lives follow in parentheses, where s, min, h, d, and y stand re-spectively for seconds, minutes, hoors, days, and years. The tableifICludes mainly the longer·jived radioactive isotopes; many othershave been prepared. Isotopes known to be radioactive but withhalf-lives e~ceedino 10'2 y havo not been included. Symbols de-scribing the principal mode (or modes) of decay are as follows(these processes are Generally accompanied by gamma radial ion)'

IGROUP1/IA

I (t5.3,.,q,/J3 (12.26y1tr7 /53.3<4EC10 (1.6)(10°)1/:1-11 (2O.,tOminlfJ+141'730\113-16 1109,8m~+

67 (61.88lilf".Zn 65 (2.44.1dJIF,ECSlOG 67 (78.2liec

n (14.10!'!1f":aGe 68 (VSd)EC»As 73 (50.3d) EC

74 (17.9d)lr,,6+,EC

5.511 12.01 16O.20dJ/r125 f2.7)'11f"121m(154dJIT123m(119.7d)fT127m(109djrr

,.1 129 (1.6It 10')'Itr131 (8.040d),6-

•• W 181 (l40dJEC185 175.1d!Jf"188 (69<1,6-

..Re 187 (Sit 10'~)'Itr,.0.194 (6.00 Jrmr 192 [74.2d)/T,fJ+,EC..Au 195 (183d)EC

p.28xI0'0a(1.59xIO'0a(2.44xIO')'Ia(7.04xIO')'Ia12.34x 10'0(1(4.47xl0'00:(1.1xIO'rEC.Jf"

.,Po 231••u 233","5'36aae_'36

,H.•. ""1TIL18NIII

.c,F"Na 22 (2.602}1

11.00794 24 (15.02'"

24.00260

1,.1 nMg 28 (20.9"'1"N 26 (7.2xI0

20.28 H "P 32 (14.26dl 4.216 H13.81 J:[ .., 35 (87.2d) I \ill. ~'~alm0.0899 t ••0 36 (3.01X I' O.1785t e38 (37,2min

ts ' 2/11A 11k 37 (35.02dJ 17NIIB 1"Hydrogen 39 (265}1,6 Helium..• 40 (1,28xI0'0EC 9S 164.0d),6- ••Nd 147 (ll.ldJII- 210 15.0IdJ/r,a 244 (18.120a -

3(6.941)

49.012182 42 (l2.36"'Jf" •• Nb 94 (2.0x 10'yllI- 6'Pm 145 (l8,i EC 210m{3xI0"yla 247 (I.5SxIO'yla

510.811

612.0107

714.0067 8 15.9994

918.99840 1020.1797

1 2we.:. 45 (l654tr 9S 13.5.1.54,6- ..5m:~ ~·~~CP~a •• Po 20B (2.90)'1a 248 p.sx 10'ylIl,SF 3 ±4,2 ;t.3,S,4,2 -2,-1 ·1

1615

Li

2744

Be

•• Sc 46 (8J.80dlJf" •• Mo 99 166.02 •.• tr 209 (102y1a ..ek 247 {1.4x 10'ylo:4275

B

4675'

C

77.344

N

90.2 0 85.0

F

27.07 NJ:r 51 (2770dlEC .r, 97 (2.6xI0"ylec 151 (9Jyltr 210 (138.384 a ..a 2.019 PSlylo:453.7 1560

~ ~:~31t:~~~yI~..Eu 152 (l3y1lF,ec,tr uN 209 1S.4f"fec,a 2348 3915' 63.15 54.4 53.55 24.56..Mn 53 (2xlO"ylEC 2.51 (9CO}1o:

0.900t e0.534 1.85S4 (313.0dJEC 154 (8.5)'113- 210 (8.lhjEC ..& 252 (472d)0: 2.37 2.26 1.251t 1.429t 1.696t56 ('2.S78hIJr ..Ru 106 {367d)rr •• Gel 150 ('2.1It 10·yla 211 17.21h)EC,a 2S3 f20A7d)0:

[He12s1 [He]2s2 •• Fe 59 (44,6dJJr •• Rh 101 (3.3)'1EC ••1b 158 (1.2x 10'y! EC,/T ooRn222 (3.824dla 254 (276d)a [He]2s22pl [He12s22p2 [He12s22p3 [He]2s22p~ [He12s22p5 [He]2s22p6lithium Beryllium •.co 56 p'8.~II+,EC ...Pd 103 (17.0dIEC 160 172,3~rr ufr 212 (l9.3 mini EC,a ,ooFm2.55 (2O.1h)a Boron Carbon Nitrogen Oxygen Fluorine Neon

57 (27Od)EC 107 p , 10·yI" uHo 166m {l.h 10'yl If" 222 (lS~tr 2S7 {lOOS~a

1122.98~770 12 24.~05058 (71.3c4IF,EC vAg 108 1127)iEC •• Tm 170 {128.6d)p-

..aa ~~ ~.~~~(Ioo»Md258 ~5dJa

1 326.98~ 538 14 28.~~55 1 5 30.9?;,~~ 1632.065

1735.453

1839.94860 {S.272,i.lf" 110 (2.52djll- 171 {1.92)'11f" 00tN0259 [58minja 6,:r;2,4, %1,7,5,3••NI 57 {36.0f"fP+,EC III 17.45~.If" 10Yb 169 (J2.odJEC ooAc 227 (21.77y1{J .....,. 260 {3.0nWoja

1156.1 N 1363M 59 (BM IO')iEC ..cd 109 [453dJEC 175 (4.l9d1P- Of,", 228 [1.913)'1a ...Rf261 (65"0:2792 AI

3538

5i

553

P

717.75

5

23911 CI 67.6 A371.0 a 923 9 6J (92y1,B- ...In 114 [49.5ldJfT "Lu 176 p.7xI0,eylfJ-

~~~ ~:~:~~~; (I,uDb262 {40~(I 933.5 1667 317.3 388.36 171.65 83.8

0.971 1.74..cu 64 (12.70hIJr,fJ+,EC 00501121 ~6""- ••Ta 182 {l15,Odl/T ,..sg2631O.9dla 2.6989 2.33 1.82 2.07 3.214t 1.784t r

[Na]3s1 [Ne)3s2 9 [Ne)3s23pl [Ne13s23p2 [Ne]3s23p3 [Ne13s23p4 [Ne]3s23p5 [Nel3s23peSodium Magnesium 3/11IA 4/1VA SNA 6NIA 7NIIA 8 r--VIIIA-----, 10 11/IB 12/IIB Aluminum Silicon Phosphorus Sulfur Chlorine Argon

19 39~83 2040.078 2144.953591

2247.867

23 50.:,:,~~ 24 51:i~~ 25 5~i.!~~ 2655.845 27 58·;~332 28 58.6i.~4 29

63.54630

65.40931

69.72332

72.64 33 74.~~~6 3478.96

3579.904

3683.80

2 4,3,2 3,2,6 2,1 2 1,3 4 4,6,-2 %1,7,5,3 0,21033 K 1757

Ca

3109

5c

3560

Ti

3660 V 2945

Cr

2234 M 313'

Fe

3200 C 3166

Ni

2635 C 1180 Z 2477 G 3106 G 876 (1<AII.1A 956

5e

331.95

Br

119.93 K336.8 1115 1814 1941 2183 2180 1519 n 1811 1766 1728 1357.8 U 692.68 n 302.91 a 1211.4 e 1090 s 494 265.95 115.8 r

8.90 0 (~""·l0.862 1.55 2.99 4.54 6.11 7.19 7.44 7.874 8.90 8.96 7.13 6.095 5.32 5.73 4.79 3.12 3.73t

[Ar]4s1 [Arj4s2 [Ar]3d14s2 [Ar13d24s2 [Ar13d34s2 [Arl3d~4s1 [Ar13d54s2 [Ar]3de4s2 [Arl3d74s2 [Ar)3d84s2 [Ar]3d104s1 [Ar13d104s2 [Ar]3d104s24pl [Ar]3d104s24p2 [Ar13d104s24p3 [Ar]3d104s24p~ [Arl3d1°4s24p! [Ar]3d104s24pBPotassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton

37 85.~678 3887.62 3988.93059 40

91.224 4192.90:'~,! 4295.94

43(98)

44 ~,~;4~~45102.!~~3~:0 46106.42 47'07.8,682 48

112.4149

114.82 50 1181.~O 5112\~~50 52127.60 53126.~~~7 54

131.292 4 6,5,4,3,2 7,5,4 2,4 , 3 4,6,-2 0,2,4,6,8

~:.46Rb

1655

5r

3618

V

4662

Zr

S017 Nb 4912M4536 ~© 4423 R 3966 Rh

3236

Pd

2435 A 1040 Cd23'S

In

2675

5~~76 5b

1261 l 457.51

I

165.11 "10SO 1795 2128 2730 2696 2430 2607 2237 1828 1234.93 9 594.22 429.75 505.08 n 722.66 e 386.85 161.4 e1.532 2.54 4.47 6.51 8.5"1 10.22 0 11.5" 12.37 U 12.41 12.0 10.50 8.65 7.31 7.31 6.69 6.24 4.93 5.90t

[Kr]5s1 [Kr]Ss2 {Kr]4d1Ss2 [Kr14d2Ss2 [KrJ4d4Ss1 [KrI4d!Ssl [Kr]4d55s2 [Kr14d75s1 [Kr]4dBSs1, [KrJ4d1O [Kr]4dlOSs1 [Kr]4d1OSs2 [Kr]4d1OSs2Sp1 [Kr]4d105s25p2 [Kr]4d IOSs25p3 [Kr)4d1OSs2Sp4 [Kr]4d1OSs2Sp! [Kr14d105s2Sp8Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon

55132.9~545 56 137,327 57'38.93°55 72 17~.49 73'80'~r9 74 ~,~~:~ 75 ~,~~,~~7.2 76 i,:'~::':7719!}g 78 19~:~8 79196.9;'~5580

200.59 81204.33~~3 82207.2 83208.~~4 84

(209)85

(210)86

(222)2,1 2,4 4,2,6 %1,7,5,3 0,2

944 C 2170 B 3737 L * 4676 Hf 5730 t 5626 W 5870 R 52850 4700 I~~.55 Pt

3130 A 62966 H9 1746

TI

2022 Pb1837

Bi

-

Po

610·

At

211.4R301.54 s 1000 a 1191 a 2506 3290 3695 3459 e 3306 2720 1337.33 U 234.32 577 600.61 544.55 527 575 202

1.87 3.5 6.15 13.31 16.65 a 19.3 21.0 22.57 S 22.42 r 21.45 19.3 13.55 11.85 11.35 9.75 9.3 9.73t n

[XeJ6s1 [Xe]6s2 [Xel5d16s2 [Xe]4fl~5d26s2 [Xe]4f145d36s2 [Xe14f145d46S2 {Xe}4f145d 56s2 [Xe14f14Sd86s2 [Xe14f14Sd 76s2 [Xe]4f145d 96s1 [Xe]4fI45d106s1 [Xe]4f1~5dlC6s2 [XeI4f145d106s26p1 Xe]4f145d106s26p2 Xe]4f145d106s26p3 XeI4fI4Sd1Of3s26p-1 Xe}4f145d1Il6s26p5 Xej4f145dl06s26pGCesium Barium lanthanum Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury Thallium Lead Bismuth Polonium Astatine Radon

87 (~23) 88 ~226) 89 }227) 1 04 ~61) 1 05~262) 106 (266) 1 07 ~264) 108 (277) 109 (268) 110(269) 111 (272) 112 (285) 113 (284) 114 (289) 115 (288) 116 117 118

~. Fr1413 R 3'7°'A**

=: ~~ =: ~~ =: @~=: ~~ =: ~~ =: ~~ =: ~~ == .~~~ =: ~~~== M~~~nl5f"~~7~ ~n)51'~.~,m == ~~~

973 a 1324

5.0 10.07 C[Rn)7s1 [Rn]7s2 [RnI6d17s2 [RnlSf146d27s2" [RnlSf4&P7s2' [RnI5f'46<t47s2· [RnlSf146d57s2' {Rn}51146d87s2' (Rn)Sf14&F7s2' [RnlSf146ct87s2• [RnJSf146<f17s2' [Rn)SI1~6dl07s2' [An)511~6dI07s27p1' [Anj5f1'6d107s27p4

Francium Radium Actinium Rutherfordium Dubnium Seaborglum Bohrium Hasslum Meltnerium Darmstadtium) (Unununium) (Ununbium) (Ununtrium) (Ununquadium) (Ununpentium) (Ununhexium) (Ununseptlum) (Ununoctium)

* Estimated Values

ATOMIC ATOMICNUMBER WEIGHT (2)

BOILING \ KEY! OXIDATION STATESPOINT, K (Bold most stable)

MELTIN~ 30POINT,K--.,. 1180 Z

692.73 n

/

7.,3

[Arl3d104s2Zinc

. 58 140;,~6 59'40.9~.~65 60144.24

61(145)

62150.36

63151

:;4 64157.25 65158.9;,~34 66

162.50 67'64.9;03 68167.26 69'68.;~:2 70

173.04 71'74.~673 3 3,2 3 3 3 3,2

3716

Ce

3785

Pr

33'7

Nd

3273 ~I2067

5

1669

Eu:::! Gd

3503

Tb

2640 Dy 2973 H 3140

Er

2223T 1469 Vb3675

Lu

1071 1204 1294 1315 13'7 1095 1629 1665 1747 1602 1818 m 1092 1936

6.77 6.77 7.01 7.26 7.52 m 5.24 7.90 8.23 8.55 8.795 0 9.07 9.32 6.903 9.841

[Xe14f15d16s2 [XeI4f36s2 [XeI4f~6s2 [Xe14f56s2 [Xe14f1l6s2 [XeI4f76s2 [XeI4f1Sdl6s2 [Xe]4f9f5s2 [Xej4f106s2 [XeI4fl16s2 [Xe14f126s2 [XeI4f136s2 [XeI4fl~6s2 [Xel4f1~Sd 16s 2Cerium Praseodymium Neodymium Promethium Samarium Europium Gadcllnlum Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium

90232.0~1 91231.05~459 9 2 236~5~~:~ 93(237)

94(244)

95 3,l~5~;,l 96(247)

97(247)

98(251)

99(252) 1 00 (~57) 1 01 (~58) 1 02 (2~,~) 1 03 (2~2)

5,6,4,3 4,6,5,3 3 2,3,4 2,3,4 3

5061 Th 4300' P 4404 U 4175'

~~3505

~~2264 ~I~.~I- ~~

-

~~-

~~- ~I- I~- OO@

-~~

2023 1645 1406 917 913 1449 1170' 1130" 1800· 1100' 1100' 1900'

11.72 15.4" a 18.95 20.2 19.84 13.7 14'[Rn)6d27s2 [Rn)SfZ6d17s2 [Rn)Sf36d17s2 [RnlSf(6d17s2 [Rn]5fIl7s2 [Rn]Sf77s2 [Rn]Sf16dI7s2 [AnlSf97s2 [RnlSf107s2 [Rn]SI117s2 [AnlSf127s2 [AnlSf137s2 [An15f147s2 (Rn)Sfl~6cjl7s2Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium lawrencium

*

**DENSITY at 300 K (3) \

(glcm3) NAMECCopyrig1t 2004 VWR Internalianal.AI Rg,1S Reserved.No portion of this work may bereproduced in any form or by anymeans without express pric>r writtenpermission from VWRlSargent-Welch.

ELECTRONCONFIGURATION

NOTES:(1) Black - solid.

Red-gas.Blue - liquid.Outline - synthetically prepared. Side 1

The A & B subgroup designations, are those recommended by the Inter-national Union of Pure and Applied Chemistry. Sargent-Weich

VWR~:£jINTERN,t,T10N,t,L

(2) Based upon carbon-12. ( ) indicates moststable or best known isotope.

(3) Entries marked with daggers refer to thegaseous state at 273 K and 1 atm and aregiven In units of g/I.

Catalcq Number WLS-18806 P.O. Box 5229 • Buffalo Grove, IL 60089-52291·800-727-4368· FAX 1-800-676-2540

\