Tansan

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Tin
50Sn
Ge

Sn

Pb
indiumtinantimony
Appearance
silvery (left, beta) or gray (right, alpha)
General properties
Name, simbolo, kaiphan tin, Sn, 50
Pronunciation Plantilya:IPAc-en
Element category post-transition metal
Group, period, block 145, p
Standard atomic weight 118.710
Electron configuration [Kr] 4d10 5s2 5p2
2, 8, 18, 18, 4
Electron shells of tin (2, 8, 18, 18, 4)
History
Discovery around 3500 BC
Physical properties
Phase solid
Density (near r.t.) (white) 7.365 g·cm−3
Density (near r.t.) (gray) 5.769 g·cm−3
Liquid density at m.p. 6.99 g·cm−3
Melting point 505.08 K, 231.93 °C, 449.47 °F
Boiling point 2875 K, 2602 °C, 4716 °F
Heat of fusion (white) 7.03 kJ·mol−1
Heat of vaporization (white) 296.1 kJ·mol−1
Molar heat capacity (white) 27.112 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1497 1657 1855 2107 2438 2893
Atomic properties
Oxidation states 4, 2, -4 (amphoteric oxide)
Electronegativity 1.96 (Pauling scale)
Ionization energies 1st: 708.6 kJ·mol−1
2nd: 1411.8 kJ·mol−1
3rd: 2943.0 kJ·mol−1
Atomic radius 140 pm
Covalent radius 139±4 pm
Van der Waals radius 217 pm
Miscellanea
Crystal structure tetragonal
Tin has a tetragonal crystal structure

white
diamond cubic
Tin has a diamond cubic crystal structure

gray
Magnetic ordering (gray) diamagnetic[1], (white) paramagnetic
Electrical resistivity (0 °C) 115 nΩ·m
Thermal conductivity 66.8 W·m−1·K−1
Thermal expansion (25 °C) 22.0 µm·m−1·K−1
Speed of sound (thin rod) (r.t.) (rolled)
2730 m·s−1
Young's modulus 50 GPa
Shear modulus 18 GPa
Bulk modulus 58 GPa
Poisson ratio 0.36
Mohs hardness 1.5
Brinell hardness ~350 MPa
CAS registry number 7440-31-5
Most stable isotopes
Main article: Isotopes of tin
iso NA half-life DM DE (MeV) DP
112Sn 0.97% 112Sn is stable with 62 neutrons
114Sn 0.66% 114Sn is stable with 64 neutrons
115Sn 0.34% 115Sn is stable with 65 neutrons
116Sn 14.54% 116Sn is stable with 66 neutrons
117Sn 7.68% 117Sn is stable with 67 neutrons
118Sn 24.22% 118Sn is stable with 68 neutrons
119Sn 8.59% 119Sn is stable with 69 neutrons
120Sn 32.58% 120Sn is stable with 70 neutrons
122Sn 4.63% 122Sn is stable with 72 neutrons
124Sn 5.79% >1×1017 y ββ 2.2870 124Te
126Sn trace 2.3×105 y β 0.380 126Sb
t  h  u
· r
Cín.PNG

Ang tansan (Iningles: tin, Kinatsila: estaño, Tinagalog: tanso) mao ang elementong kemikal sa periodic table nga may simbolo nga Sn (Linatin: stannum) ug numerong atomiko nga 50. Ang daw-silver, maleyable nga puthaw nga dili dayon ma-oksidays sa hangin ug dili matayaan makit-an sa daghang aloy ug gigamit sa pag-koting (coating) sa ubang puthaw. Ang tansan naggikan sa mineral nga cassiterite, isip usa ka oksayd (oxide). Mahimong bronse kini kon ialoy sa kopre.


References[usba | edit source]

  1. Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.