କୋବାଲ୍‌ଟ
English: Cobalt

Cobalt,  27Co
Kobalt electrolytic and 1cm3 cube.jpg
ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକcobalt, Co
Appearancehard lustrous gray metal
ଉଚ୍ଚାରଣ /ˈkbɒlt/ KOH-bolt[୧]
Cobalt 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)
-

Co

Rh
ironcobaltnickel
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)27
ଶ୍ରେଣୀ, ବ୍ଳକgroup 9, d-block
ପର୍ଯ୍ୟାୟperiod 4
ମୌଳିକ ପ୍ରକାର  transition metal
ମାନକ ପରମାଣବିକ ଓଜନ (±) (Ar)58.933195(5)
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ[Ar] 4s2 3d7
per shell
2, 8, 15, 2
ଭୌତିକ ଗୁଣ
metallic gray
ଅବସ୍ଥାsolid
ଗଳନାଙ୍କ1768 K ​(1495 °C, ​2723 °F)
ସ୍ଫୁଟନାଙ୍କ3200 K ​(2927 °C, ​5301 °F)
Density near r.t.8.90 g/cm3
when liquid, at m.p.7.75 g/cm3
Heat of fusion16.06 kJ/mol
Heat of 377 kJ/mol
Molar heat capacity24.81 J/(mol·K)
P (Pa)1101001 k10 k100 k
at T (K)179019602165242327553198
Atomic properties
Oxidation states5, 4, 3, 2, 1, -1[୨] ​amphoteric oxide
ElectronegativityPauling scale: 1.88
energies
(more)
Atomic radiusempirical: 125 pm
Covalent radius126±3 (low spin), 150±7 (high spin) pm
Miscellanea
Crystal structure ​hexagonal close-packed (hcp)
Hexagonal close packed crystal structure for cobalt
Speed of sound thin rod4720 m/s (at 20 °C)
Thermal expansion13.0 µm/(m·K) (at 25 °C)
Thermal conductivity100 W/(m·K)
Electrical resistivity62.4 n Ω·m (at 20 °C)
Magnetic orderingferromagnetic
Young's modulus209 GPa
Shear modulus75 GPa
Bulk modulus180 GPa
Poisson ratio0.31
Mohs hardness5.0
Vickers hardness1043 MPa
Brinell hardness700 MPa
CAS Number7440-48-4
ଇତିହାସ
ଆବିଷ୍କାରGeorg Brandt (1732)
Most stable isotopes of cobalt
isoNAhalf-lifeDMDE (MeV)DP
56Cosyn77.27 dε4.56656Fe
57Cosyn271.79 dε0.83657Fe
58Cosyn70.86 dε2.30758Fe
59Co100%59Co is stable with 32 neutrons
60Cosyn5.2714 years, γ2.82460Ni
| references

କୋବାଲ୍‌ଟ ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ Coପରମାଣୁ କ୍ରମାଙ୍କ ୨୭ ଅଟେ ।

Other Languages
Afrikaans: Kobalt
አማርኛ: ኮባልት
aragonés: Cobol
العربية: كوبالت
asturianu: Cobaltu
azərbaycanca: Kobalt
تۆرکجه: کوبالت
беларуская: Кобальт
беларуская (тарашкевіца)‎: Кобальт
български: Кобалт
भोजपुरी: कोबाल्ट
বাংলা: কোবাল্ট
བོད་ཡིག: གོ་བྰལ་
brezhoneg: Kobalt
bosanski: Kobalt
català: Cobalt
Mìng-dĕ̤ng-ngṳ̄: Gū (gĭng-sṳ̆k)
Cebuano: Kobalto
کوردی: کۆبالت
corsu: Cobaltu
čeština: Kobalt
Чӑвашла: Кобальт
Cymraeg: Cobalt
dansk: Kobolt
Deutsch: Cobalt
ދިވެހިބަސް: ކޮބާލްޓް
Ελληνικά: Κοβάλτιο
English: Cobalt
Esperanto: Kobalto
español: Cobalto
eesti: Koobalt
euskara: Kobalto
فارسی: کبالت
suomi: Koboltti
français: Cobalt
Nordfriisk: Koobalt
furlan: Cobalt
Gaeilge: Cóbalt
Gàidhlig: Còbalt
galego: Cobalto
ગુજરાતી: કોબાલ્ટ
Gaelg: Cobalt
客家語/Hak-kâ-ngî: Cobalt
עברית: קובלט
हिन्दी: कोबाल्ट
Fiji Hindi: Cobalt
hrvatski: Kobalt
magyar: Kobalt
հայերեն: Կոբալտ
Արեւմտահայերէն: Կոբաղդ
interlingua: Cobalt
Bahasa Indonesia: Kobalt
Ido: Kobalto
íslenska: Kóbolt
italiano: Cobalto
日本語: コバルト
la .lojban.: ridjinme
Jawa: Kobalt
ქართული: კობალტი
Kabɩyɛ: Kobalti
қазақша: Кобальт
ಕನ್ನಡ: ಕೋಬಾಲ್ಟ್
한국어: 코발트
kurdî: Kobalt
коми: Кобальт
Кыргызча: Кобальт
Latina: Cobaltum
Lëtzebuergesch: Kobalt
Limburgs: Kobalt
Ligure: Cobalto
lumbaart: Cobalto
lietuvių: Kobaltas
latviešu: Kobalts
македонски: Кобалт
മലയാളം: കൊബാൾട്ട്
монгол: Кобальт
मराठी: कोबाल्ट
кырык мары: Кобальт
Bahasa Melayu: Kobalt
မြန်မာဘာသာ: ကိုဘော့ (ဒြပ်စင်)
эрзянь: Кобальт
Plattdüütsch: Kobalt
नेपाली: कोबाल्ट
नेपाल भाषा: कोबाल्ट
Nederlands: Kobalt
norsk nynorsk: Kobolt
norsk: Kobolt
Diné bizaad: Béésh łibáhí
occitan: Cobalt
Livvinkarjala: Kobal’tu
ਪੰਜਾਬੀ: ਕੋਬਾਲਟ
पालि: कोबाल्ट
polski: Kobalt
Piemontèis: Cobalt
پنجابی: کوبالٹ
português: Cobalto
Runa Simi: Kubaltu
română: Cobalt
armãneashti: Cobaltu
русский: Кобальт
संस्कृतम्: कोबाल्ट
sicilianu: Cobbaltu
Scots: Cobaut
srpskohrvatski / српскохрватски: Kobalt
සිංහල: කොබෝල්ට්
Simple English: Cobalt
slovenčina: Kobalt
slovenščina: Kobalt
Soomaaliga: Kobalti
shqip: Kobalti
српски / srpski: Кобалт
Seeltersk: Cobalt
Sunda: Kobalt
svenska: Kobolt
Kiswahili: Kobalti
తెలుగు: కోబాల్ట్
тоҷикӣ: Кобалт
Tagalog: Kobalto
Türkçe: Kobalt
татарча/tatarça: Кобальт
ئۇيغۇرچە / Uyghurche: كوبالت
українська: Кобальт
اردو: کوبالٹ
oʻzbekcha/ўзбекча: Kobalt
vepsän kel’: Kobal't (himine element)
Tiếng Việt: Coban
walon: Cobalt
Winaray: Cobalto
吴语:
хальмг: Кобалтион
ייִדיש: קאבאלט
Yorùbá: Cobalt
中文:
文言:
Bân-lâm-gú: Cobalt
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