Sulfur, 16S |
Sulfur |
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Appearance | lemon yellae sintered microcrystals |
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Standard atomic weight Ar, std(S) | [7001320590000000000♠32.059, 7001320760000000000♠32.076] conventional: 7001320600000000000♠32.06 |
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Sulfur in the periodic cairt |
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Atomic nummer (Z) | 16 |
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Group | group 16 (chalcogens) |
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Period | period 3 |
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Block | p-block |
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Element category | Reactive nonmetal |
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Electron confeeguration | [Ne] 3s2 3p4 |
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Electrons per shell | 2, 8, 6 |
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Pheesical properties |
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Phase at STP | solit |
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Meltin pynt | 388.36 K (115.21 °C, 239.38 °F) |
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Bylin pynt | 717.8 K (444.6 °C, 832.3 °F) |
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Density (near r.t.) | (alpha) 2.07 g/cm3 (beta) 1.96 g/cm3 (gamma) 1.92 g/cm3 |
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when liquid (at m.p.) | 1.819 g/cm3 |
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Creetical pynt | 1314 K, 20.7 MPa |
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Heat o fusion | (mono) 1.727 kJ/mol |
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Heat o vapourisation | (mono) 45 kJ/mol |
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Molar heat capacity | 22.75 J/(mol·K) |
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Vapour pressur
P (Pa)
|
1
|
10
|
100
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1 k
|
10 k
|
100 k
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at T (K)
|
375
|
408
|
449
|
508
|
591
|
717
|
|
Atomic properties |
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Oxidation states | −2, −1, 0, +1, +2, +3, +4, +5, +6 strangly acidic |
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Electronegativity | Pauling scale: 2.58 |
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Ionisation energies | |
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Covalent radius | 105±3 pm |
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Van der Waals radius | 180 pm |
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Spectral lines o sulfur |
Ither properties |
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Naitural occurrence | primordial |
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Creestal structur | orthorhombic |
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Thermal conductivity | (amorphous) 0.205 W/(m·K) |
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Electrical resistivity | (amorphous) 2×1015 Ω·m (at 20 °C) |
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Magnetic orderin | diamagnetic[1] |
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Bulk modulus | 7.7 GPa |
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Mohs haurdness | 2.0 |
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CAS Nummer | 7704-34-9 |
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History |
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Diskivery | Cheenese[2] (Before 2000BC) |
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Recognized as an element bi | Antoine Lavoisier (1777) |
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Main isotopes o sulfur |
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| references |
style="text-align:left"|
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in
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calc from C
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diff
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report
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ref
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C
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115.21
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—
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—
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|
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K
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388.36
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388.36
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0
|
|
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F
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239.38
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239.38
|
0
|
|
|
WD
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String Module Error: Target string is empty !
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|
|
|
input
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C: 115.21, K: 388.36, F: 239.38
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comment
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style="text-align:left"|
|
|
in
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calc from C
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diff
|
report
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ref
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C
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444.6
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—
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—
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|
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K
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717.8
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717.8
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0
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F
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832.3
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832.3
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0
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WD
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String Module Error: Target string is empty !
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input
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C: 444.6, K: 717.8, F: 832.3
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comment
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References
Thir references will appear in the airticle, but this list appears anerly on this page.
- ↑ Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics (PDF). CRC press. 2000. ISBN 0849304814.
- ↑ "Sulfur History". Georgiagulfsulfur.com. Retrieved 12 September 2008.