aspect 27 of regular table is Cobalt with atomic number 27, atomic weight 58.9332. Cobalt, symbol Co, has actually a an easy Hexagonal structure and Gray color. Cobalt is a change metal element. Understand everything around Cobalt Facts, physical Properties, chemistry Properties, digital configuration, Atomic and Crystal Structure.
Cobalt is a chemical element with prize Co and atomic number 27. Choose nickel, cobalt in the Earth"s late is discovered only in chemically combined form, save for small deposits discovered in alloys of natural meteoric iron. The totally free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal.
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Read crucial information and also facts around element Cobalt
|group in periodic Table||9|
|Group Name||cobalt family|
|period in regular Table||4|
|Block in regular Table||d-block|
|Melting suggest||1495 °C|
|Boiling suggest||2927 °C|
|Electronic covering Structure||<2, 8, 15, 2>|
How to situate Cobalt on regular Table
Periodic table is arranged by atomic number, variety of protons in the nucleus i m sorry is very same as variety of electrons. The atomic number rises from left to right. Regular table starts at top left ( atom number 1) and also ends at bottom best (atomic number 118). Because of this you can directly look for atomic number 27 to discover Cobalt on regular table.
Another method to read routine table and locate an facet is by using group number (column) and duration number (row). To find Cobalt on regular table look because that cross section of team 9 and duration 4 in the modern periodic table.
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Table of Contents
Atomic & orbital Properties
Health and also Safety Parameters and also Guidelines
Compare Cobalt with various other elements
The aspect Cobalt was uncovered by Georg Brandt in year 1735 in Sweden . Cobalt acquired its name from the German indigenous Kobold, definition "goblin"
Cobalt Presence: variety in Nature and Around Us
The table below shows the diversity of Cobalt in Universe, Sun, Meteorites, Earth"s Crust, Oceans and also Human Body.
|abundance in cosmos||3e-06|
|abundance in sunlight||4e-06|
|abundance in Meteorites||0.00059|
|Abundance in Earth"s crust||3e-05|
|abundance in oceans||8×10-9%|
|diversity in human beings||2×10-6%|
Crystal framework of Cobalt
The hard state structure of Cobalt is Simple Hexagonal.
The decision structure have the right to be defined in regards to its unit Cell. The unit cells repeats chin in 3 dimensional room to form the structure.
Unit cabinet Parameters
The unit cabinet is stood for in terms of its lattice parameters, which are the lengths that the cabinet edges Lattice Constants (a, b and c)
and the angles in between them Lattice angles (alpha, beta and also gamma).
The location of the atoms within the unit cabinet are defined by the collection of atom positions ( xi, yi, zi) measured native a recommendation lattice point.
The symmetry nature of the decision are described by the concept of room groups. All feasible symmetric kinds of particles in three-dimensional an are are defined by the 230 an are groups (219 distinct types, or 230 if chiral copies are considered distinct.
|an are Group surname||P63/mmc|| |
|space Group Number||194|
|Crystal structure||Simple Hexagonal|
Cobalt Atomic and also Orbital Properties
Cobalt atoms have actually 27 electrons and also the electronic shell framework is <2, 8, 15, 2> through Atomic ax Symbol (Quantum Numbers) 4F9/2.
|Number of electron (with no charge)||27|
|Number that Protons||27|
|Number that Neutrons||32|
|Shell structure (Electrons per energy level)||<2, 8, 15, 2>|
|Valence Electrons||3d7 4s2|
|Oxidation State||-3;-1 1;2;3;4;5|
|Atomic ax Symbol (Quantum Numbers)||4F9/2|
Shell structure of Cobalt - electron per power level
Ground State electronic Configuration the Cobalt - neutral Cobalt atomThe floor state electronic configuration that Neutral Cobalt atom is
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Unabbreviated electronic configuration that neutral Cobalt
Complete floor state electronic configuration because that the Cobalt atom, Unabbreviated digital configuration
1s2 2s2 2p6 3s2 3p6 3d7 4s2
Atomic framework of Cobalt
Cobalt atom radius is 152 pm, when it"s covalent radius is 126 pm.
|atom Radius|| |
152 pm (1.52 Å)
|Atomic Volume||6.62170786517 cm3|
|Covalent Radius||126 pm (1.26 Å)|
|van der Waals Radius||N/A|
|spirit Cross ar||37.2 σa/barns|
Atomic Spectrum the Cobalt
Cobalt chemical Properties: Cobalt Ionization Energies and electron affinity
The electron affinity that Cobalt is 63.7 kJ/mol
Ionization power of Cobalt
Refer to table below for Ionization energies the Cobalt
Cobalt physical Properties
Refer to listed below table for Cobalt physics Properties
|Molar Volume||6.62170786517 cm3|
|Young Modulus||209 GPa|
|Shear Modulus||75 GPa|
|bulk Modulus||180 GPa|
Hardness of Cobalt - tests to measure of Hardness of Element
|Mohs Hardness||5 MPa|
|Vickers Hardness||1043 MPa|
|Brinell Hardness||700 MPa|
Cobalt electric Properties
Cobalt is Conductor of electricity. Refer to table listed below for the electrical properties the Cobalt
|electrical Conductivity||1.7×107 S/m|
|Resistivity||6×10-8 m Ω|
Cobalt Heat and also Conduction Properties
|heat Conductivity||100 W/(m K)|
|Thermal expansion||0.000013 K-1|
Cobalt Magnetic Properties
|Curie point||1394 K|
|mass Magnetic Susceptibility||N/A|
|Molar Magnetic Susceptibility||N/A|
|Volume Magnetic Susceptibility||N/A|
Optical properties of Cobalt
|Refractive table of contents||N/A|
Acoustic properties of Cobalt
|speed of Sound||4720 m/s|
Cobalt thermal Properties - Enthalpies and also thermodynamics
Refer to table listed below for heat properties the Cobalt
|Melting suggest||1768 K (1495 °C)|
|Boiling allude||3.2×103 K (2927 °C)|
Enthalpies the Cobalt
|warm of blend||16.2 kJ/mol|
|warmth of Vaporization||375 kJ/mol|
|warm of burning||N/A|
Cobalt isotopes - nuclear Properties of Cobalt
Isotopes that rhodium. Naturally occurring Cobalt has 1 steady isotope - 59Co.
Regulatory and Health - Health and Safety Parameters and also Guidelines
|period Hazard class||4.1|
|NFPA Fire Rating||N/A|
|NFPA wellness Rating||N/A|
|NFPA Reactivity Rating||N/A|
perform of unique identifiers to search the facet in miscellaneous chemical registry databases
|CAS Number - chemistry Abstracts business (CAS)||CAS7440-48-4|