十張精彩元素周期表(中英文高清)

周期族ⅠA0電子層周期族ⅠA0電子層0族電子數(shù)11H氫1s1ⅡA原子序數(shù)——92U——元素符號(hào) 非金屬 金屬紅色表示放射性元素 過渡元素元素名稱——鈾5f36d17s2注*的表示人造元素238.0—相對(duì)原子質(zhì)量（加括號(hào)的數(shù)據(jù)為該放射性元素半衰期最長同位素的質(zhì)量數(shù)）ⅢAⅣAⅤAⅥAⅦA2He氦1s2K223Li鋰2s122.994Be鈹2s25B硼2s22p110.816C碳2s22p212.017N氮2s22p314.018O氧2s22p416.009F氟2s22p419.0010Ne氖2s22p420.18LK82311Na鈉3s112Mg鎂3s2ⅢBⅣBVBⅥBⅦBⅧⅠBⅡB13Al鋁3s23p126.9814Si硅3s23p228.0915P磷3s23p330.9716S硫3s23p432.0617Cl氯35.4518Ar氬3s23p639.95MLK882419K鉀4s120Ca鈣4s221Sc鈧3d14s244.9622Ti鈦47.8723V釩3d34s250.9424Cr鉻52.0025Mn錳3d54s254.9426Fe鐵3d64s255.8527Co鈷58.9328Ni鎳3d84s258.6929Cu銅3d104s163.5530Zn鋅3d104s265.4131Ga鎵4s24p169.7232Ge鍺4s24p272.6433As砷4s24p374.9234Se硒4s24p478.9635Br溴79.9036Kr氪4s24p683.80NMLK81882537Rb銣5s138Sr鍶5s139Y釔4d15s288.9140Zr鋯91.2241Nb鈮4d45s192.9142Mo鉬95.9443Tc锝4d55s2〈98〉44Ru釕102.945Rh銠102.946Pd鈀4d10106.447Ag銀4d105s1107.948Cd鎘4d105s2112.449In銦5s25p1114.850Sn錫5s25p2118.751Sb銻5s25p3121.852Te碲5s25p4127.653I碘126.954Xe氙5s25p6131.3ONMLK8181882655Cs銫6s156Ba鋇6s257～71La～Lu鑭系72Hf鉿5d26s2178.573Ta鉭5d36s2180.974W鎢5d46s2183.875Re錸5d56s2186.276Os鋨5d66s2190.277Ir銥192.278Pt鉑5d96s1195.179Au金5d106s1197.080Hg汞5d106s2200.681Tl鉈6s26p1204.482Pb鉛6s26p2207.283Po鉍6s26p3209.084Po釙6s26p4〔209〕85At砹6s26p1〔210〕86Rn氡6s26p1〔222〕PONMLK818321882787Fr鈁7s1〔223〕88Rr鐳7s2〔226〕89～103Ac～Lr錒系104Rf钅盧*﹙6d27s2﹚〔261〕105Db钅杜*(6d37s2)262〕106Sg钅喜*〔266〕107Bh钅波*〔264〕108Hs钅黑*〔277〕109Mt钅麥*〔268〕110Ds鐽*〔281〕111Rg錀*〔272〕112Uub*〔285〕…………鑭系57La鑭5d16s2138.958Ce鈰4f15d16s2140.159Pr鐠4f36s2140.960Nd釹4f46s2144.261Pm钷4f56s2〔145〕62Sm釤4f66s2150.463Eu銪4f76s2152.064Gd釓157.365Tb鋱4f96s2158.966Dy鏑4f106s2162.567Ho鈥4f116s2164.968Er鉺4f126s2167.369Tm銩4f136s2168.970Yb鐿4f146s2173.071Lu镥4f145d16s2175.0錒系89Ac錒6d17s2〔227〕90Th釷6d27s2232.091Pa鏷5f26d17s2231.092U鈾238.093Np镎5f46d17s2〔237〕94Pu钚5f67s2〔244〕95Am镅*5f77s2〔243〕96Cm鋦*〔247〕97Bk锫*〔147〕98Cf锎*5f107s2〔251〕99Es锿*5f117s2〔252〕100Fm鐨*5f127s2〔257〕101Md鍆*5f137s2〔258〕102No锘*5f147s2〔259〕103Lr鐒*5f146d17s2〔262〕氫/'haidr?d??n/

氦?i?m/鋰

鈹/b?'rili?m/

硼氟l??ri?氟l??ri?銀/'silv?(r)/鑭/'l?θ?naid/

碳ɑ?b?

氮

氧

氟l??ri?

氖??鈉鎂鋁 硅磷硫氯氬/'s??di?m/i?zi?m//?lj?'mini?m//'silik?n/ /'f?sf?r?s//‘s?lf?(r)/??ri?ɑ?g?鉀/p?‘t?si?m/

鈣/'k?lsi?m/

鈧/'sk?ndi?m/

鈦/ti'teini?m/

釩/v?'neidi?m/

鉻/'kr??mi?m/

錳?g?i?z/

鐵/ai?n/

鈷??b??

鎳/'nikl/

銅/'k?p?(r)/

鋅i?k/

鎵/‘g?li?m/

鍺???'meini?m/

砷ɑ?

硒?'li?i?m/

溴??mi?

氪/'kript?n/銣/r?'bidi?m/

鍶/'str?nti?m/

釔/'itri?m/

釔z??'??i?m/

鈮

鉬

锝????m/

釕?'θi?i?m/

銠/'r??di?m/

鈀/p?'leidi?m/

銀/'silv?(r)/

鎘/'k?dmi?m/

銦/'indi?m/

錫/tin/

銻/'?ntim?ni/

碲/'telj??ri?m/

碘i?i?

氙/'zen?n/銫鋇鑭鉿鉭鎢錸鋨銥鉑金汞鉈鉛鉍 釙砹氡?zi?m//'be?ri?m//'l?nθ?naid//'h?fni?m//'t?nt?l?m/??t??i?m//'?zmi?m//I'ridi?m//'pl?tin?m//g??ld/??k?ri//'θ?li?m/i?/'bizm?θ/ /'p?l??ni?m/t?ti?/'reid?n/鈁/'fr?nsi?m/鐳錒/?k'tini?m//'?lk?lai/堿金屬/'?lk?lain/堿土金屬金屬 鐠鑭 鈰釹 鉅 釤 釓 鋱 鏑 鉺 銩 鐿 鎦/'metl??d/類金屬非金屬/'h?l?d??n/鹵素/'n??bl/稀有氣體

i??i?m/i???'dimi?m/?'m?θi?m/

??i?m/

??i?m/'θ?i?m/

t??i?m/u?'ti??i?m//'l?nθ?naid/or/?k'tinaid/稀土元素錒/?k'tini?m/

釷'??ri?m/

鏷

鈾/ju'reini?m/1HHydrogen1s112.237–1HHydrogen1s112.237–0.7513.60213 14 15 16

18Helium1s2– –– –24.593Li

4Be

Electronegativity:

5B10.81

6C12.01

7N14.01

8O16.009

Lithium1s22s11 0.98152 (+1)760.62 5.39

Beryllium1s22s22 1.57111 (+2)459.32

Paulingscale;measuresabilityofatomtoattractelectronsinachemicalbondAtomicRadius:givenin“pm”;1pm=1x10mIonicRadius:givenin“pm”;1pm=1x10m

Boron1s22s2p13 2.0480 –0.28 8.30

Carbon1s22s2p24,2 2.5577 (+4)161.26 11.26

Nitrogen1s22s2p3–2 74 (+3)1614.53

Oxygen1s22s2p4-2 3.4474 (-2)1401.46 13.62

Fluorine 1s22s2p5-1 3.9871 (-1)1333.40 17.42

Neon1s22s2p6– –– –21.57

energyreleasedintheformationofan

13Al26.9814

Si28.0915

P30.9716

S32.0717

18Ar39.95[Ne]3s1

Magnesium [Ne]3s2

AtomicNumber:numberofprotons

anion:givenin“eV”1stIonizationPotential:

[Ne]3s2p1

Silicon

[Ne]3s2p3

Sulfur

Chlorine[Ne]3s2p5

Argon[Ne]3s2p611860.550.93(+1)1025.14

21601.31(+2)727.65

AtomicWeight:weightedaverageofatomicmassesofnaturalisotopes-massnumberofthemoststableisotopeforeachradioactiveelement3 4 5 6 7 8 9

energyrequiredtoremoveoneelectron,formingacation;givenin“eV”10 11 12

31430.441.61(+3)545.99

41181.391.90(+4)408.15

–,1100.752.19(+5)1710.49

–,61032.082.58(-2)18410.36

–993.613.16(-1)18112.97

––––15.7619K

Ti47.8723

50.9424Cr52.00

Potassium[Ar]4s1

Calcium [Ar]4s2

Scandium[Ar]3d14s2

Titanium[Ar]3d24s2

Vanadium[Ar]3d34s2

Chromium[Ar]3d54s1

[Ar]3d54s2

Iron[Ar]3d64s2

Cobalt[Ar]3d74s2

Nickel[Ar]3d84s2

Copper[Ar]3d104s1

Zinc[Ar]3d104s2

Gallium[Ar]3d104s2p1

[Ar]3d104s2p2

Arsenic[Ar]3d104s2p3

Selenium[Ar]3d104s2p4

Bromine[Ar]3d104s2p5

Krypton[Ar]3d104s2p612270.50

0.82(+1)1514.34

21970.04

1.00(+2)1006.11

31610.19

1.36(+3)756.56

41450.08

1.54(+4)616.83

5.31310.53

1.63(+5)546.75

6,3,21250.67

1.66(+3)626.77

7,6,4,2,3137

1.55(+2)677.43

2,31240.151

1.83(+3)557.90

2,31250.66

1.88(+2)657.88

2,31251.16

1.91(+2)697.64

2,11281.24

1.90(+2)737.73

2133

1.65(+2)749.39

31220.3

1.81(+3)625.10

41231.23

2.01(+4)537.90

–1250.81

2.18(+3)589.81

–,1162.02

2.55(-2)1989.75

–1143.36

2.96(-1)19611.81

––

––14.00

39

Y88.9140

Rubidium[Kr]5s1

Strontium [Kr]5s2

Yttrium[Kr]4d15s2

Zirconium[Kr]4d25s2

Niobium[Kr]4d45s1

[Kr]4d55s1

[Kr]4d55s2

Ruthenium[Kr]4d75s1

Rhodium[Kr]4d85s1

Palladium[Kr]4d10

Silver[Kr]4d105s1

Cadmium[Kr]4d105s2

Indium[Kr]4d105s2p1

Tin[Kr]4d105s2p2

Antimony[Kr]4d105s2p3

Tellurium[Kr]4d105s2p4

Iodine[Kr]4d105s2p5

Xenon[Kr]4d105s2p612480.49

0.82(+1)1614.18

22150.11

0.95(+2)1265.70

31780.31

1.22(+3)1026.22

41590.43

1.33(+4)846.63

5,31430.90

1.60(+5)646.76

6,5,4,3,21360.75

2.16(+6)597.09

71350.55

2.10–7.28

2,3,4,6,81331.05

2.20(+3)687.36

2,3,41351.14

2.28(+3)677.46

2,41380.56

2.20(+2)648.34

11451.30

1.93(+1)1157.58

2149

1.69(+2)958.99

31630.30

1.78(+3)805.79

4,21411.11

1.96(+4)457.34

–1451.07

2.05(+3)768.64

–,1431.97

2.10(-2)2219.01

–1333.06

2.66(-1)22010.45

––

2.60–12.13

Hf178.573Ta180.974

Ir192.278

84Po

222Cesium

Osmium

Iridium

Platinum

Gold

Thallium

Lead

Astatine

Radon

12650.470.79(+1)1743.89

22170.150.89(+2)1425.21

31870.51.10(+3)1165.77

4156~01.3(+4)836.83

51430.321.5(+5)647.89

6,5,4,3,21370.861.7(+6)607.98

7,6,4,2,-11370.151.9(+7)537.88

2,3,4,6,81341.102.2(+4)638.7

2,3,4,61361.572.2(+4)639.1

2,41392.132.2(+4)639.0

3,11442.312.4(+3)859.23

2,11501.9(+2)10210.44

3,11700.21.8(+1)1596.11

4,21750.361.8(+2)1197.42

3,51550.951.9(+3)1037.29

4,21181.92.0(+4)–8.42

––2.82.2–-

––––10.75

?

? ?Francium

Radium

Dubnium

Seaborgium

Bohrium

Hassium

Meitnerium

Unununium

Ununbium

[Rn]7s1

[Rn]7s2

[Rn]6d17s2

disc.1964

disc.1967

disc.1974

disc.1981

disc.1984

disc.1982

Germany

disc.1994Darmstats,Germany

disc.1996Darmstats,Germany

disc.2004Dubna,Russia

disc.1999Dubna,Russia

disc.2004Dubna,Russia

- - -- - -1–0.46

0.7––

2––

0.9(+2)1625.28

3188–

1.1(+3)-5.17HALOGENSNOBLEGASESALKALI

EARTHMETALSSERIES58Ce59Pr60Nd61Pm14562Sm63Eu64GdSERIES58Ce59Pr60Nd61Pm14562Sm63Eu64Gd65Tb66Dy67Ho68Er69Tm70Yb71LuCeriumNeodymiumPromethiumSamariumEuropiumGadoliniumTerbiumDysprosiumHolmiumErbiumThuliumYtterbiumLutetium[Xe]4f15d16s2[Xe]4f36s2[Xe]4f46s2[Xe]4f56s2[Xe]4f66s2[Xe]4f76s2[Xe]4f75d16s2[Xe]4f96s2[Xe]4f106s2[Xe]4f116s2[Xe]4f126s2[Xe]4f136s2[Xe]4f146s23,41.123,41.1331.143–3,21.173,2–31.203,4–31.2231.2331.243,21.253,2–31.0183(+3)114182(+3)113181(+3)114181(+3)109180(+3)108199(+3)107179(+3)105176(+3)118175(+3)103174–173(+3)100173(+3)109194(+3)99172(+3)98–5.54–5.46–5.53–5.55–5.64–5.67–6.15–5.86–5.94–6.02–6.11–6.18–6.25–5.43ISBN142320003-990Th91Pa92U93Np23794Pu24490Th91Pa92U93Np23794Pu24495Am24396Cm24797Bk24798Cf25199Es252Fm257Md258No259Lr262ThoriumProtactiniumUraniumNeptuniumPlutoniumAmericiumCuriumBerkeliumCaliforniumFermiumNobeliumLawrencium[Rn]6d27s2[Rn]5f26d17s2[Rn]5f36d17s2[Rn]5f46d17s2[Rn]5f67s2[Rn]5f77s2[Rn]5f76d17s2[Rn]5f97s2[Rn]5f107s2[Rn]5f117s2[Rn]5f127s2[Rn]5f137s2[Rn]5f147s2[Rn]5f146d17s241.35,41.56,5,4,31.76,5,4,31.36,5,4,31.36,5,4,3–3–4,3–3–3–3–3,2–3,2–3–180(+4)94161(+5)78139(+6)73–(+5)75151(+4)86131(+3)98–(+3)97–(+3)96–(+3)95–––––––––––6.08–5.89–6.19–6.27–6.06–5.99–6.02–6.23–6.30–6.42–6.50–6.58–6.65––SERIES$4.95U.S./$7.50SERIESREFERENCE:CRCHandbookofChemistryandPhysics?81stedition,2000-2001CONTENTADVISOR:MarkJackson,PhDProfessor-FloridaAtlanticUniversityDESIGN/LAYOUT:JohnFord,CEO-CustomerHotline#1.800.230.9522March2005GROUP

PERIODICTABLE

OFTHEELEMENTS1 IAPERIOD11.0079PERIODMetalSemimetal Nonmetal

18VIIIA24.0026 1 HHYDROGEN2IIA13GROUPCASAlkalimetalAlkalineearthmetalChalcogenselementHalogenselement13 IIIA14IVA15VA16VIA17VIIA

HeHELIUM3 6.9414

9.0122

510.811

18Noblegas

510.8116

12.0117

14.0078

15.9999

18.998

1020.180Li Be

SYMBOL B

LanthanideSTANDARDSTATE(100°C;101kPa)

B C N

F NeLITHIUM

BERYLLIUM

BORON

Actinide

Ne-gas

Fe-solid

BORON

CARBON

NITROGEN

OXYGEN

FLUORINE

NEON1122.990

1224.305ELEMENTNAME

Ga-liquid

1326.982

1428.086

1530.974

1632.065

1735.453

1839.948NaSODIUM

MgMAGNESIUM3IIIB4IVB5VB6VIB7VIIBVIIIB8 910 IB12IIB

AlALUMINIUM

SiSILICON

PPHOSPHORUS

SSULPHUR

ClCHLORINE

ArARGON1939.098

2040.078

2144.956

2247.867

2350.942

2451.996

2554.938

2655.845

2758.933

2858.693

2963.54630

65.39

3169.72332

72.64

3374.92234

78.96

3579.90436

83.80K

CaCALCIUM

ScSCANDIUM

Ti

V

CrCHROMIUM

MnMANGANESE

FeIRON

Co

NiNICKEL

CuCOPPER

ZnZINC

GaGALLIUM

GeGERMANIUM

AsARSENIC

SeSELENIUM

BrBROMINE

KrKRYPTON3785.46838

87.62

3988.906

4091.224

4192.90642

95.9443

(98)

44101.07

45102.91

46106.42

47107.87

48112.41

49114.82

50118.71

51121.76

52127.60

53126.90

54131.29Rb

Y

Nb Mo

Ru Rh

Ag Cd

Sn Sb

I XeRUBIDIUM

STRONTIUM

YTTRIUM

ZIRCONIUM

NIOBIUM

MOLYBDENUMTECHNETIUMRUTHENIUM

RHODIUM

CADMIUM

INDIUM

TIN

ANTIMONY

TELLURIUM

IODINE

XENON55132.91

56137.33

57-71

72178.49

73180.95

74183.84

75186.21

76190.23

77192.22

78195.08

79196.97

80200.59

81204.3882

207.2

83208.9884

(209)85

(210)86

(222)CsCAESIUM

BaBARIUM

La-LuLanthanide

HfHAFNIUM

Ta

WTUNGSTEN

ReRHENIUM

OsOSMIUM

IrIRIDIUM

Pt

AuGOLD

Hg

TlTHALLIUM

PbLEAD

BiBISMUTH

PoPOLONIUM

At

RnRADON87(223)88

(226)

89-103

104

(261)

105

(262)

106

(266)

107(264)

108

(277)

109(268)

(281)

(272)

(285)

114

(289)

Ra Ac-Lr

Db

Bh

Mt

Uuu

Uub

UuqFRANCIUM

RADIUM

Actinide

RUTHERFORDIUM

DUBNIUM

SEABORGIUM

BOHRIUM

HASSIUM

MEITNERIUMUNUNNILIUMUNUNUNIUM

UNUNBIUM

UNUNQUADIUMLANTHANIDE

Copyright?1998-2003EniG.(eni@ktf-split.hr)(1)PureAppl.Chem.,73,No.4,667-683(2001)Relativeatomicmassisshownwithfive

57138.9158140.12

59140.9160144.2461

(145)62150.3663151.9664157.2565158.9366162.5067164.93

68167.2669168.9370173.0471174.97elementshavenostablenuclides,thevalueenclosedinbracketsthemassnumberofthelongest-lived

La

Pr

Pm Sm Eu Gd Tb Dy

Er Tm Yb Luisotopeoftheelement.Howeverthreesuchelements(Th,Pa,andU)dohaveacharacteristicterrestrialisotopic

LANTHANUMACTINIDE

CERIUM

PRASEODYMIUMNEODYMIUMPROMETHIUM

SAMARIUM

EUROPIUM

GADOLINIUM

TERBIUM

DYSPROSIUM

HOLMIUM

ERBIUM

THULIUM

YTTERBIUM

LUTETIUMcomposition,andfortheseanatomicweightistabulated.

89(227)

90232.04

91231.04

92238.0393

(237)94

(244)95

(243)96

(247)97

(247)98

(251)99

(252)

100

(257)

101

(258)

102

(259)

103

(262)Ac Th

U

Pu Am Cm Bk

Es Fm Md No Lr

ACTINIUM

THORIUM

PROTACTINIUM

URANIUM

NEPTUNIUM

AMERICIUM

CURIUM

EINSTEINIUM

FERMIUM

MENDELEVIUM

NOBELIUM

LAWRENCIUM1 181Hhydrogen[1.007,1.009]2Key:IUPACPeriodicTableoftheElementehelium4.00334atomicnumber5678910LiBeSymbolBCNOFNelithiumberylliumnameboroncarbonnitrogenoxygenfluorineneon[6.938,6.997]9.012standardatomicweight[10.80,10.83][12.00,12.02][14.00,14.01][15.99,16.00]19.0020.181112131415161718NasodiumMgmagnesiumAlaluminiumSisiliconPphosphorusSsulfurClchlorineArargon22.99[24.30,24.31]345678910111226.98[28.08,28.09]30.97[32.05,32.08][35.44,35.46]39.95192021222324252627282930313233343536KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKrpotassiumcalciumscandiumtitaniumvanadiumchromiummanganeseironcobaltnickelcopperzincgalliumgermaniumarsenicseleniumbrominekrypton39.1040.0844.9647.8750.9452.0054.9455.8558.9358.6963.5565.38(2)69.7272.6374.9278.96(3)[79.90,79.91]83.80373839404142434445464748495051525354RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXerubidiumstrontiumyttriumzirconiumniobiummolybdenumtechnetiumrutheniumrhodiumpalladiumsilvercadmiumindiumtinantimonytelluriumiodinexenon85.4787.6288.9191.2292.9195.96(2)101.1102.9106.4107.9112.4114.8118.7121.8127.6126.9131.3555657-71727374757677787980818283848586CsBalanthanoidsHfTaWReOsIrPtAuHgTlPbBiPoAtRncaesiumbariumhafniumtantalumtungstenrheniumosmiumiridiumplatinumgoldmercurythalliumleadbismuthpoloniumastatineradon132.9137.3178.5180.9183.8186.2190.2192.2195.1197.0200.6[204.3,204.4]207.2209.0878889-103104105106107108109110111112114116FrRaactinoidsRfDbSgBhHsMtDsRgCnFlLvfranciumradiumrutherfordiumdubniumseaborgiumbohriumhassiummeitneriumdarmstadtiumroentgeniumcoperniciumfleroviumlivermorium575859606162636465666768697071LaCePrNdPmSmEuGdTbDyHoErTmYbLulanthanumceriumpraseodymiumneodymiumpromethiumsamariumeuropiumgadoliniumterbiumdysprosiumholmiumerbiumthuliumytterbiumlutetium138.9140.1140.9144.2150.4152.0157.3158.9162.5164.9167.3168.9173.1175.08990919293949596979899100101102103AcactiniumThthoriumPaprotactiniumUuraniumNpneptuniumPuplutoniumAmamericiumCmcuriumBkberkeliumCfcaliforniumEseinsteiniumFmfermiumMdmendeleviumNonobeliumLrlawrencium232.0231.0238.0INTERNATIONALUNIONOFCHEMISTRY

NotesIUPAC2011Standardatomicweightsabridgedtofoursignificantdigits(Table4publishedinPureAppl.Chem.85,1047-1078(2013);:///10.1351/PAC-REP-13-03-02.Theuncertaintyinthelastdigitofthestandardatomicweightvalueislistedinparenthesesfollowingthevalue.Intheabsenceofparentheses,theuncertaintyisoneinthatlastdigit.Anintervalinsquarebracketsprovidesthelowerandupperboundsofthestandardatomicweightforthatelement.Novaluesarelistedforelementswhichlackisotopeswithacharacteristicisotopicabundanceinnaturalterrestrialsamples.SeePACformoredetails.“Aluminum”and“cesium”arecommonlyusedalternativespellingsfor“aluminium”and“caesium.”ClaimsforthediscoveryofalltheremainingelementsinthelastrowoftheTable,namelyelementswithatomicnumbers113,115,117and118,andforwhichnoassignmentshaveyetbeenmade,arebeingconsideredbyaIUPACandIUPAPJointWorkingParty.Forupdatestothistable,see/reports/periodic_table/.Thisversionisdated1May2013.Copyright?2013IUPAC,theInternationalUnionofPureandAppliedChemistry.1 181 2Hhydrogen[1.007;1.009]2Key:IUPACPeriodicTableoftheElements1314151617Hehelium4.00334atomicnumber5678910LiBeSymbolBCNOFNelithiumberylliumnameboroncarbonnitrogenoxygenfluorineneon[6.938;6.997]9.012standardatomicweight[10.80;10.83][12.00;12.02][14.00;14.01][15.99;16.00]19.0020.181112131415161718NasodiumMgmagnesiumAlaluminiumSisiliconPphosphorusSsulfurClchlorineArargon22.9924.31345678910111226.98[28.08;28.09]30.97[32.05;32.08][35.44;35.46]39.95192021222324252627282930313233343536KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKrpotassiumcalciumscandiumtitaniumvanadiumchromiummanganeseironcobaltnickelcopperzincgalliumgermaniumarsenicseleniumbrominekrypton39.1040.0844.9647.8750.9452.0054.9455.8558.9358.6963.5565.38(2)69.7272.6374.9278.96(3)79.9083.80373839404142434445464748495051525354RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXerubidiumstrontiumyttriumzirconiumniobiummolybdenumtechnetiumrutheniumrhodiumpalladiumsilvercadmiumindiumtinantimonytelluriumiodinexenon85.4787.6288.9191.2292.9195.96(2)101.1102.9106.4107.9112.4114.8118.7121.8127.6126.9131.3555657-71727374757677787980818283848586CsBalanthanoidsHfTaWReOsIrPtAuHgTlPbBiPoAtRncaesiumbariumhafniumtantalumtungstenrheniumosmiumiridiumplatinumgoldmercurythalliumleadbismuthpoloniumastatineradon132.9137.3178.5180.9183.8186.2190.2192.2195.1197.0200.6[204.3;204.4]207.2209.0878889-103104105106107108109110111112FrRaactinoidsRfDbSgBhHsMtDsRgCnfranciumradiumrutherfordiumdubniumseaborgiumbohriumhassiummeitneriumdarmstadtiumroentgeniumcopernicium575859606162636465666768697071LaCePrNdPmSmEuGdTbDyHoErTmYbLulanthanumceriumpraseodymiumneodymiumpromethiumsamariumeuropiumgadoliniumterbiumdysprosiumholmiumerbiumthuliumytterbiumlutetium138.9140.1140.9144.2150.4152.0157.3158.9162.5164.9167.3168.9173.1175.08990919293949596979899100101102103AcactiniumThthoriumPaprotactiniumUuraniumNpneptuniumPuplutoniumAmamericiumCmcuriumBkberkeliumCfcaliforniumEseinsteiniumFmfermiumMdmendeleviumNonobeliumLrlawrencium232.0231.0238.0NotesIUPAC2009Standardatomicweightsabridgedtofoursignificantdigits(Table4publishedinPureAppl.Chem.83,359-396(2011);doi:10.1351/PAC-REP-10-09-14).Theuncertaintyinthelastdigitofthestandardatomicweightvalueislistedinparenthesesfollowingthevalue.Intheabsenceofparentheses,theuncertaintyisoneinthatlastdigit.Anintervalinsquarebracketsprovidesthelowerandupperboundsofthestandardatomicweightforthatelement.Novaluesarelistedforelementswithnostableisotopes.SeePACformoredetails.“Aluminum”and“cesium”arecommonlyusedalternativespellingsfor“aluminium”and“caesium.”Forupdatestothistable,see/reports/periodic_table/.Thisversionisdated21January2011.Copyright?2011IUPAC,theInternationalUnionofPureandAppliedChemistry.89AcACTINIUM22790ThTHORIUM2329189AcACTINIUM22790ThTHORIUM23291Pa23192UURANIUM23893NpNEPTUNIUM23794PuPLUTONIUM24495AmAMERICIUM24396CmCURIUM24797BkBERKELIUM24798CfCALIFORNIUM25199EsEINSTEINIUM252100FmFERMIUM257101Md258102NoNOBELIUM259103LrLAWRENCIUM262\h1HHYDROGEN\h1HHYDROGEN13LiLITHIUM7NaSODIUM2319K4BeBERYLLIUM912MgMAGNESIUM2420CaPOTASSIUMCALCIUM39 4037 3821ScSCANDIUM4539Rb Sr YRUBIDIUMSTRONTIUMYTTRIUM85 88 8955 56Cs BaCESIUM BARIUM133 13787 88Fr RaFRANCIUM RADIUM223 226ThePeriodicTableofElementsThePeriodicTableofElements6 AtomicNumber=NumberofProtons=NumberofElectrons 2HeC ChemicalSymbol NON-METALS HELIUM45 6 7 8 9 10CARBON ChemicalName B C N O F Ne12 AtomicWeight=NumberofProtons+NumberofNeutrons* BORON CARBON NITROGEN OXYGEN FLUORINE NEON11 12 14 16 HY