tabel 50 elemente tfab

7/30/2019 Tabel 50 Elemente TFAB

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1R. D. Rugescu, 2011 Materiale pentru sisteme de propulsie aerospaial

NrElementul chimic

To

pire[C]

Densitate [g/cmc] Masa molar [g-mol]

raza atomic

Emp,Calc[][4]

Modul Young

[GPa]

Rupere, r[Pa] 107 lungire r%Cond.ter

mic[W/m/K

]

MyOx

Hf0

Entalpieformare[kJ/mol]

de adaugatoxizii

Anul

descopeririii

cercettorul

1Galiu Ga 5.91 69.723 1.870 - - 29 276.9808(g)

0 (s)

1875

2Sodiu Na 0.97 22.98976928

1.100 10 - 140 107.738 (g)2.4058 (l)

0 (s)

1807

3Litiu Li 0.534 6.941 1.820 4.9 - 85 160.6656(g)

2.380696 (l)0 (s)

1817

4Staniu Sn 7.287 118.710 2.170 50 0.36 66.6 302.0848(g)

-2.092 (sgri)

0 (s alb)

3500.Hr.

5Bismut Bi 9.807 208.98040 2.070 32 0.33 7.87 207.108 (g)0 (s)

1753

6Taliu Tl 11.8 204.3833 1.960 8 0.45 46.1 182.2132(g)0 (s)

1861

7Cadmiu Cd 8.69 112.411 2.180 50 0.30 96.8 112.00568(g)

-0.58576 (salpha)

0 (s gamma)

1817

8Plumb Pb 11.342 207.2 2.020 16 1213*10e5 0.44 35.3 195.602 (g)4.2886 (l)

0 (s)

3000.Hr.

9Zinc Zn 7.134 65.38 2.010 108 0.25 116 130.72908(g)

0 (s)

1746

10Telur Te 6.232 127.60 2.060 43 - 2.35 196.73168(g)

0 (s)

1782

11MagneziuMg 1.74 24.3050 1.730 45 0.29 156 147.61152(g)

9.03744 (l)0 (s)

1808

12Aluminiu Al 2.70 26.9815386

1.840 70 0.35 237 326.352 (g)8.66088 (l)

0 (s)

1808

13Bariu Ba 3.62 137.327 2.680 13 - 18.4 179.0752

(g)4.97896 (l)0 (s)

1808


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14Ytterbiu Yb 6.90 173.054 2.260 24 0.21 34.9 152.2976(g)

0 (s)

1878

15GermaniuGe 5.323 72.64 2.110 - - 59.9 376.56 (g)0 (s)1871DmitriMendeleyev

16Argint 47 Ag 10.501 107.8682 2.110 83 0.37 429 1192.0216(g)

284.55384(g)

0 (s)

antichitate

17Aur Au 19.282 196.966569

2.140 78 0.44 317 366.1 (g)0 (s) antichitate

18Cupru Cu 8.933 63.546 1.960 130 0.34 401 338.31824(g)

0 (s)

antichitate

19Mangan Mn 7.3 54.938045 2.050 198 - 7.82 280.7464(g)

1.54808 (sgamma)

0 (s alpha)

CarlWilhelmScheele

177420Beriliu Be 1.85 9.012182 1.530 287 0.032 200 324.26 (g)

12.04992 (l)0 (s)

AbbHay,1798

21GadoliniuGd 7.9 157.25 2.340 55 0.26 10.6 397.48 (g)0 (s)

1880,Jean deMarignac

22Terbiu Tb 8.23 158.92535 2.330 56 0.26 11.1 388.6936(g)

0 (s)

1843,CarlMosander

23[Siliciu] Si 2.3296 28.0855 2.100 47 - 148 455.6376(g)

0 (s)

1824,

JnsJacobBerzelius

24Nichel Ni 8.912 58.6934 1.970 200 0.31 90.7 429.6968(g)

0 (s)

1751,

AxelFredrikCrons

tedt25Cobalt Co 8.86 58.933195 2.000 209 0.31 100 -110.54128

(g)1739,


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0.46024(structur

cubicsolida)

0 (structursolid

hexagonal)

GeorgBrandt

26Ytriu Y 4.47 88.90585 2.320 64 0.24 17.2 421.3288(g)

0 (s)

1789,

JohanGadolin

27Erbiu Er

28Fier Fe

29Scandiu Sc

30Paladiu Pd

31Thuliu Tm

32Lutetiu Lu

33Titan Ti

34Thoriu Th

35Platin Pt36Zirconiu Zr

37Crom Cr

38Vanadiu V

39Rhodiu Rh

40[Bor] B

41Hafniu Hf

42Rhuteniu Ru

43Iridiu Ir

44Niobiu Nb

45Molibden Mo

46Tantal Ta

47Osmiu Os

48Rheniu Re


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49Wolfram W

50[Carbon] C

Se vor completa pentru fiecare element casetele lipsa, prin documentare, cu mentionarea sursei bibliografice folosite. Exemplu maijos.

Exemple de citare bibliografic:

Litiul a fost descoperit n mineralul petalit (LiAl(Si2O5)2) de Johann August Arfvedson n1817 [5].

Borul a fost descoperit de Joseph-Louis Gay-Lussac i Louis-Jaques Thnard, chimitifrancezi, i independent de Sir Humphry Davy, un chimist englez, n 1808 [7].

1.Pagini http:[1]http://education.jlab.org/itselemental/ele005.html[2] *** Periodensystem pocketcard, ISBN 3-929785-28-5, Brm Bruckmeier Verlag, 82031Grnwald, Germany,www.media4u.com, 2002.[3] Visual elements,www.rsc.org/periodic-table/element/4/beryllium [4]http://www.webelements.com[-]

2.Cri:[5] A.M. Howatson, P.G. Lund, and J.D. Todd,Engineering Tables and Data, p. 41.[6] *** CRC Handbook of Chemistry and Physics, CRC Press, 92nd Edition, 2011.

[7] Alfred Buch (1999),Pure metals properties: a scientific-technical handbook, ISBN 08717063779780871706379, OCLC Number 441824091, Materials Park, ASM International, London-Tel Aviv,Freund Pub. House, 306 p, 25 cm.[8] Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: NewYork, NY, 1979; p 9:4-9:94.[9] Lide, David R. CRC Handbook of Chemistry and Physics, 84th ed.; CRC Press: Boca Raton, FL,2002.[10] Ibidem, 83rd ed, 2002.3.Reviste:[11] Jiemin Z, Lamvik M, 1998, "Thermal conductivity of gallium at solid/liquid phasetransformation"High Temperatures - High Pressures30(3), 307314:[Thermal conductivity of gallium at solid/liquid phase transformation, received 29 April 1997]Abstract. The thermal conductivity of pure gallium during liquid/solid phase transformation has

been measured. The measurements establish that there is a one-dimensional motion of a freezing ormelting front in the specimen. The technique employed allows the study of alternative conditions:the propagation of the phase transition interface, as opposed to the quasi-equilibrium state where theinterface is stationary. The position of the interface is determined from the measurement of theelectric resistance over the specimen including the interface. The resistance over time obtainedduring the melting/freezing processes enables the speed of the solid-liquid interface to bedetermined. The thermal conductivity of the specimen at the interface is evaluated as a real-time

property from the speed of the moving interface, temperature gradients normal to the interface, andthermal properties. The mean values of the thermal conductivity of gallium at the transitiontemperature, 29.772 C, were found to be l s = 43.6 W m-1 K-1 and ll = 27.8 W m-1 K-1 for the solidand the liquid phase, respectively. These values are 16% and 10% lower than a set of definedreference data based on electric measurements that are referred to in the literature.
http://education.jlab.org/itselemental/ele005.htmlhttp://education.jlab.org/itselemental/ele005.htmlhttp://education.jlab.org/itselemental/ele005.htmlhttp://www.media4u.com/http://www.media4u.com/http://www.media4u.com/http://www.rsc.org/periodic-table/element/4/berylliumhttp://www.rsc.org/periodic-table/element/4/berylliumhttp://www.rsc.org/periodic-table/element/4/berylliumhttp://www.webelements.com/beryllium/physics.htmlhttp://www.webelements.com/beryllium/physics.htmlhttp://www.webelements.com/beryllium/physics.htmlhttp://www.webelements.com/beryllium/physics.htmlhttp://www.rsc.org/periodic-table/element/4/berylliumhttp://www.media4u.com/http://education.jlab.org/itselemental/ele005.html


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http://www.mrteverett.com/Chemistry/pdictable/q_elements.asp?language=en&Symbol=TeAdd to languages: 120110Rumanian: Telur
http://www.mrteverett.com/Chemistry/pdictable/q_elements.asp?language=en&Symbol=Tehttp://www.mrteverett.com/Chemistry/pdictable/q_elements.asp?language=en&Symbol=Tehttp://www.mrteverett.com/Chemistry/pdictable/q_elements.asp?language=en&Symbol=Te


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[Tellurium element was discovered in Romania, sylvanite (AgAuTe4)is its most spread ore, bearingthe name from Transylvania, and 23 million Romanians may read this text]

Add to languages:Romanian: Zinc[An alloy containing 87% zinc has been found in prehistoric ruins in Transylvania (Romania); 23mill. Romanians may read Everett page]

tabel 50 elemente tfab

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