Mercur
80
Hg
Grupă
12
Perioadă
6
Bloc
d
Protoni
Electroni
Neutroni
80
80
121
Proprietăți Generale
Număr atomic
80
Masă atomică
200,59
Numar de masa
201
Categorie
Metale de tranziție
Culoare
Argint
Radioactive
Nu
Din cuvântul latin hydrargyrum, însemnând argint lichid
Structură cristalină
Simplu Trigonal
Istoric
Mercury was known to the ancient Chinese and Indians and has been found in Egyptian tombs dating back to about 1500 BC.
Alchemists thought of mercury as the First Matter from which all metals were formed.
They believed that different metals could be produced by varying the quality and quantity of sulfur contained within the mercury.
Alchemists thought of mercury as the First Matter from which all metals were formed.
They believed that different metals could be produced by varying the quality and quantity of sulfur contained within the mercury.
Electroni pe nivelul de energie
2, 8, 18, 32, 18, 2
Configurație electronică
[Xe] 4f14 5d10 6s2
Mercury is the only metal that is liquid at room temperature
Proprietăți Fizice
Fază
Lichid
Densitate
13,5336 g/cm3
Punct de topire
234,32 K | -38,83 °C | -37,89 °F
Punct de fierbere
630,15 K | 357 °C | 674,6 °F
Energie de fuziune
2,29 kJ/mol
Energie de evaporare
59,2 kJ/mol
Căldură specifică
0,14 J/g·K
Abundența în scoarța Pământului
6,7×10-6%
Abundența în Univers
1×10-7%
Numarul CAS
7439-97-6
Număr CID PubChem
23931
Proprietăți Atomice
Rază atomică
151 pm
Rază de covalență
132 pm
Electronegativitate
2,00 (Scara lui Pauling)
Potențial de ionizare
10,4375 eV
Volum molar
14,82 cm3/mol
Conductivitate termică
0,0834 W/cm·K
Număr de oxidare
1, 2, 4
Aplicații
Mercury is used in barometers and manometers because of its high density.
Gaseous mercury is used in mercury-vapor lamps and some 'neon sign' type advertising signs and fluorescent lamps.
Mercury is also found in liquid mirror telescopes.
Gaseous mercury is also found in some electron tubes, including ignitrons, thyratrons, and mercury arc rectifiers.
Gaseous mercury is used in mercury-vapor lamps and some 'neon sign' type advertising signs and fluorescent lamps.
Mercury is also found in liquid mirror telescopes.
Gaseous mercury is also found in some electron tubes, including ignitrons, thyratrons, and mercury arc rectifiers.
Mercury and most of its compounds are highly toxic
Izotopi
Izotopi stabili
196Hg, 198Hg, 199Hg, 200Hg, 201Hg, 202Hg, 204HgIzotopi instabili
171Hg, 172Hg, 173Hg, 174Hg, 175Hg, 176Hg, 177Hg, 178Hg, 179Hg, 180Hg, 181Hg, 182Hg, 183Hg, 184Hg, 185Hg, 186Hg, 187Hg, 188Hg, 189Hg, 190Hg, 191Hg, 192Hg, 193Hg, 194Hg, 195Hg, 197Hg, 203Hg, 205Hg, 206Hg, 207Hg, 208Hg, 209Hg, 210Hg