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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)
silvery white
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan cerium, Ce, 58
Paglitok /ˈsɪəriəm/
Kategoriyang elemento puthaw nga lantanido
Group, period, block [[group {{{group}}} element|{{{group}}}]], 6, f
Gibug-aton sa atomo 140.116
Kontorno sa elektron [Xe] 4f1 5d1 6s2[1]
2, 8, 18, 19, 9, 2
Electron shells of cerium (2, 8, 18, 19, 9, 2)
Pagkadiskobre Martin Heinrich Klaproth, Jöns Jakob Berzelius, Wilhelm Hisinger (1803)
First isolation Carl Gustaf Mosander (1839)
Physical properties
Phase magahi
Density (near r.t.) 6.770 g·cm−3
Liquid density at m.p. 6.55 g·cm−3
Melting point 1068 K, 795 °C, 1463 °F
Boiling point 3716 K, 3443 °C, 6229 °F
Heat of fusion 5.46 kJ·mol−1
Heat of vaporization 398 kJ·mol−1
Molar heat capacity 26.94 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1992 2194 2442 2754 3159 3705
Atomic properties
Oxidation states 4, 3, 2, 1
(mildly basic oxide)
Electronegativity 1.12 (Pauling scale)
Ionization energies 1st: 534.4 kJ·mol−1
2nd: 1050 kJ·mol−1
3rd: 1949 kJ·mol−1
Atomic radius 181.8 pm
Covalent radius 204±9 pm
Crystal structure face-centered cubic
Cerium has a face-centered cubic crystal structure
Magnetic ordering paramagnetic[2]
Electrical resistivity (r.t.) (β, poly) 828 nΩ·m
Thermal conductivity 11.3 W·m−1·K−1
Thermal expansion (r.t.) (γ, poly) 6.3 µm/(m·K)
Speed of sound (thin rod) (20 °C) 2100 m·s−1
Young's modulus (γ form) 33.6 GPa
Shear modulus (γ form) 13.5 GPa
Bulk modulus (γ form) 21.5 GPa
Poisson ratio (γ form) 0.24
Mohs hardness 2.5
Vickers hardness 270 MPa
Brinell hardness 412 MPa
CAS registry number 7440-45-1
Most stable isotopes
Main article: Isotopes of cerium
iso NA half-life DM DE (MeV) DP
134Ce syn 3.16 d ε 0.500 134La
136Ce 0.185% >3.8×1016 y β+β+ 2.419 136Ba
138Ce 0.251% >1.5×1014 y β+β+ 0.694 138Ba
139Ce syn 137.640 d ε 0.278 139La
140Ce 88.450% 140Ce is stable with 82 neutrons
141Ce syn 32.501 d β 0.581 141Pr
142Ce 11.114% >5×1016 y ββ 1.417 142Nd
α 1.298 138Ba
144Ce syn 284.893 d β 0.319 144Pr
· r

Ang ceryo (Iningles cerium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Ce ug kaiphan nga atomik 58. Ang ceryo mao ang puthaw nga lantanido.

Ang mga gi basihan niini[usba | usba ang wikitext]

  1. Ground levels and ionization energies for the neutral atoms, NIST
  2. Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.

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