ମୁଖ୍ୟ ସୂଚୀ ଦେଖିବେ

ସୀସା (ଇଂରାଜୀ: Lead; ଲୀଡ୍) ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ Pb (ଲାଟିନ: plumbum; ପ୍ଲମ୍‌ବମ୍ରୁ ଅସିଛି) ଓ ପରମାଣୁ କ୍ରମାଙ୍କ ୮୨ ଅଟେ ।

Lead,  82Pb
Lead electrolytic and 1cm3 cube.jpg
ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକlead, Pb
Appearancemetallic gray
ଉଚ୍ଚାରଣ /ˈlɛd/ LED
Lead in the periodic table
Hydrogen (other non-metal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (other non-metal)
Nitrogen (other non-metal)
Oxygen (other non-metal)
Fluorine (halogen)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (other non-metal)
Sulfur (other non-metal)
Chlorine (halogen)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (other non-metal)
Bromine (halogen)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (halogen)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanoid)
Cerium (lanthanoid)
Praseodymium (lanthanoid)
Neodymium (lanthanoid)
Promethium (lanthanoid)
Samarium (lanthanoid)
Europium (lanthanoid)
Gadolinium (lanthanoid)
Terbium (lanthanoid)
Dysprosium (lanthanoid)
Holmium (lanthanoid)
Erbium (lanthanoid)
Thulium (lanthanoid)
Ytterbium (lanthanoid)
Lutetium (lanthanoid)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (halogen)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinoid)
Thorium (actinoid)
Protactinium (actinoid)
Uranium (actinoid)
Neptunium (actinoid)
Plutonium (actinoid)
Americium (actinoid)
Curium (actinoid)
Berkelium (actinoid)
Californium (actinoid)
Einsteinium (actinoid)
Fermium (actinoid)
Mendelevium (actinoid)
Nobelium (actinoid)
Lawrencium (actinoid)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Ununtrium (unknown chemical properties)
Flerovium (unknown chemical properties)
Ununpentium (unknown chemical properties)
Livermorium (unknown chemical properties)
Ununseptium (unknown chemical properties)
Ununoctium (unknown chemical properties)
Sn

Pb

Fl
thalliumleadbismuth
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)82
ଶ୍ରେଣୀ, ବ୍ଳକgroup 14 (carbon group), p-block
ପର୍ଯ୍ୟାୟperiod 6
ମୌଳିକ ପ୍ରକାର  post-transition metal
ମାନକ ପରମାଣବିକ ଓଜନ (Ar)207.2
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ[Xe] 4f14 5d10 6s2 6p2
per shell
2, 8, 18, 32, 18, 4
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥାsolid
ଗଳନାଙ୍କ600.61 K ​(327.46 °C, ​621.43 °F)
ସ୍ଫୁଟନାଙ୍କ2022 K ​(1749 °C, ​3180 °F)
Density near r.t.11.34 g/cm3
when liquid, at m.p.10.66 g/cm3
Heat of fusion4.77 kJ/mol
Heat of 179.5 kJ/mol
Molar heat capacity26.650 J/(mol·K)
 pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 978 1088 1229 1412 1660 2027
Atomic properties
Oxidation states4, 3, 2, 1
(Amphoteric oxide)
ElectronegativityPauling scale: 2.33
Atomic radiusempirical: 175 pm
Covalent radius146±5 pm
Van der Waals radius202 pm
Miscellanea
Crystal structureface-centered cubic (fcc)
Face-centered cubic crystal structure for lead
Speed of sound thin rod(annealed)
1190 m/s (at r.t.)
Thermal expansion28.9 µm/(m·K) (at 25 °C)
Thermal conductivity35.3 W/(m·K)
Electrical resistivity208 n Ω·m (at 20 °C)
Magnetic orderingdiamagnetic
Young's modulus16 GPa
Shear modulus5.6 GPa
Bulk modulus46 GPa
Poisson ratio0.44
Mohs hardness1.5
Brinell hardness38.3 MPa
CAS Number7439-92-1
ଇତିହାସ
ଆବିଷ୍କାରMiddle Easterns (7000 BC)
Most stable isotopes of lead
iso NA half-life DM DE (MeV) DP
204Pb 1.4% >1.4×1017 y α 1.972 200Hg
205Pb syn 1.53×107 y ε 0.051 205Tl
206Pb 24.1% 206Pb is stable with 124 neutrons
207Pb 22.1% 207Pb is stable with 125 neutrons
208Pb 52.4% >2×1019 y α 0.5188 204Hg
210Pb trace 22.3 y α 3.792 206Hg
β 0.064 210Bi
| references

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ସହାୟକ ଗ୍ରନ୍ଥସମ୍ପାଦନ କରନ୍ତୁ

  • Lide, D. R., ed. (2004). CRC Handbook of Chemistry and Physics (84th ed.). Boca Raton (FL): CRC Press. ISBN 978-0-8493-0484-2.
  • Polyanskiy, N. G. (1986). Fillipova, N. A (ed.). Аналитическая химия элементов: Свинец (in Russian). Nauka. Unknown parameter |trans_title= ignored (help)CS1 maint: Unrecognized language (link)

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