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Lista elementelor chimice după nume Wikipedia

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List of elements by symbol Simple English Wikipedia, the ...

Carbon C 14 2 p Solid Primordial Nonmetal 7 Nitrogen N 15 2 p Gas Primordial Nonmetal 8 Oxygen O 16 2 p Gas Primordial Nonmetal 9 Fluorine F 17 2 p Gas Primordial Halogen 10 Neon Ne 18 2 p Gas Primordial Noble gas 11 Sodium Na 1 3 s Solid Primordial Alkali metal 12 Magnesium Mg 2 3 s Solid Primordial Alkaline earth metal 13 Aluminium Al 13 3 p


Lista elementelor chimice după nume Wikipedia

1072 °C: 1778 °C: 1879: Lecoq de Boisbaudran Scandiu: Sc: 21: 44,95591 g/mol: 2,99 g/cm3: 1539 °C: 2832 °C: 1879: Nilson Seaborgiu: Sg: 106: 263,1182 g/mol: g/cm 3 ?? 1974: Oganessian Seleniu: Se: 34: 78,96 g/mol: 4,82 g/cm3: 217 °C: 685 °C: 1817: Berzelius Siliciu: Si: 14: 28,0855 g/mol: 2,33 g/cm3: 1410 °C: 2355 °C: 1824: Berzelius Sodiu, Natriu: Na: 11: 22,989768 g/mol: 0,97 g/cm3: 97,8 °C


SN 1572 Wikipedia

SN 1572 (Tycho''s Supernova, Tycho''s Nova), or B Cassiopeiae (B Cas), was a supernova of Type Ia in the constellation Cassiopeia, one of eight supernovae visible to the naked eye in historical appeared in early November 1572 and was independently discovered by many individuals.. Its supernova remnant has been observed optically but was first detected at radio wavelengths; it is often ...


What is the enthalpy of formation of carbon monoxide in KJ ...

26/3/2015· This gives C(s) +½O₂(g) → CO(g); ΔH = "99 kJ" Using your numbers, the standard enthalpy of formation of carbon monoxide is 99 kJ/mol. I think that your value for the heat of combustion of CO is incorrect. It should be 566 kJ. This would give the correct value of …


Common Bond Energies (D Wired Chemist

csn: 192: 216: cpb: 130: 230: cn: 305: 147: c=n: 615: 129: c≡n: 887: 116: cp: 264: 184: co: 358: 143: c=o: 799: 120: c≡o: 1072: 113: cb: 356: cs: 272: 182: c=s: 573: 160: cf: 485: 135: ccl: 327: 177: cbr: 285: 194: ci: 213: 214


Senarai unsur mengikut takat lebur Wikipedia Bahasa ...

Senarai unsur mengikut takat lebur. Daripada Wikipedia, ensiklopedia bebas. Pergi ke navigasi Pergi ke carian. Ini merupakan senarai unsur kimia yang disusun mengikut takat lebur yang disukat pada tekanan biasa. Kategori unsur dalam jadual berkala. Logam. Metaloid. Bukan logam. Logam alkali.


Carbon nanotubeincorporated directpatternable SnO2 thin ...

Carbon nanotubeincorporated directpatternable SnO2 thin films formed by photochemical metalorganic deposition


Melting points of the elements (data page) Wikipedia

The Gmelin rare earths handbook lists 1522 °C and 1550 °C as two melting points given in the literature, the most recent reference [ Handbook on the chemistry and physics of rare earths, (1989)] is given with 1529 °C. The World Book encyclopedia from 2002 lists 1529 °C. 89 Ac actinium (Ac227 ?)


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List of elements by symbol Simple English Wikipedia, the ...

1072 °C: 1778 °C: 1879: Lecoq de Boisbaudran Sn: Tin: Latin Stannum: 50: 118,71 g/mol: 7,29 g/cm3: 232 °C: 2270 °C: prehistoric: unknown Sr: Strontium: 38: 87,62 g/mol: 2,63 g/cm3: 769 °C: 1384 °C: 1790: Crawford Ta: Tantalum: 73: 180,9479 g/mol: 16,68 g/cm3: 2996 °C: 5425 °C: 1802: Ekeberg Tb: Terbium: 65: 158,92534 g/mol: 8,25 g/cm3: 1360 °C: 3041 °C: 1843: Mosander Tc: Technetium: 43: …


Grundstof Wikipedia, den frie encyklopædi

Et grundstof er et kemisk stof, der udelukkende består af atomer med samme atomnummer (dvs. har samme antal protoner i kernen) – for eksempel jern, der udelukkende består af jernatomer Fe, eller brom, der i ren form udelukkende består af molekyler med formlen Br 2.. Vand er derimod en kemisk forbindelse bestående af molekyler, der er sammensat af flere forskellige atomer – et iltatom O ...


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Samarium Element information, properties and uses ...

Samarium was one of the rare earths (aka lanthanoids) which perplexed and puzzled the chemists of the 1800s. Its history began with the discovery of cerium in 1803. This was suspected of harbouring other metals, and in 1839 Carl Mosander claimed to have obtained lanthanum and didymium from it.


Senarai unsur mengikut takat lebur Wikipedia Bahasa ...

Sn: °C ( K) 84: Polonium: Po: 254 °C (527 K) 83: Bismut: Bi: °C ( K) 85: Astatin: At: 302 °C (575 K) 81: Talium: Tl: 304 °C (577 K) 48: Kadmium: Cd: °C ( K) 82: Plumbum: Pb: °C ( K) 30: Zink: Zn: °C ( K) 52: Telurium: Te: °C ( K) 51: Antimoni: Sb: °C ( K) 93: Neptunium: Np: 640 °C (913 K) 94: Plutonium: Pu: 640 °C …


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European Pharmacopoeia (Ph. Eur.) 10th Edition | EDQM ...

1/1/2021· 2022 subscription. 10th Edition print version: the 2022 subscription includes the three noncumulative updates (, and ) and provides access to the Ph. Eur. online archives until 31 December 2022.. 10th Edition electronic version: the 2022 subscription provides access to the cumulative content of the updates ( to ) as well as to the Ph. Eur. online archives until 31 ...


Melting points of the elements (data page) Wikipedia

1072: Samarium: Sm: 62: 1083: Copper: Cu: 29: 1100: Promethium: Pm: 61: 1132: Uranium: U: 92: 1245: Manganese: Mn: 25: 1278: Beryllium: Be: 4: 1311: Gadolinium: Gd: 64: 1340: Curium: Cm: 96: 1360: Terbium: Tb: 65: 1410: Silicon: Si: 14: 1412: Dysprosium: Dy: 66: 1453: Nickel: Ni: 28: 1470: Holmium: Ho: 67: 1495: Cobalt: Co: 27: 1522: Erbium: Er: 68: 1523: Yttrium: Y: 39: 1527: Fermium: Fm: 100: …


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What is the enthalpy of formation of carbon monoxide in KJ ...

26/3/2015· To solve this problem, we use Hess''s Law. Our target equation has C (s) on the left hand side, so we rewrite equation 1: 1. C (s) + O₂ (g) → CO₂ (g); ΔH = 393 kJ. Our target equation has CO (g) on the right hand side, so we reverse equation 2 and divide by 2. 3. CO₂ (g) → CO (g) + …