Amerisyo

Ang amerisyo (Iningles americium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Am ug kaiphan nga atomik 95. Ang amerisyo mao ang aktinido.

Americium
95Am
Eu

Am

(Uqs)
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)
Periodic table
plutoniumamericiumcurium
Panagway
silvery white
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphanamericium, Am, 95
Paglitok/ˌæməˈrɪsiəm/
[[Help:Pronunciation respelling key|Plantilya:Smallcaps all-ə-Plantilya:Smallcaps all-ee-əm]]
Kategoriyang elementoaktinido
Group, period, block3, 7, f
Gibug-aton sa atomo(243)
Kontorno sa elektron[Rn] 5f7 7s2
2, 8, 18, 32, 25, 8, 2
Electron shells of americium (2, 8, 18, 32, 25, 8, 2)
Electron shells of americium (2, 8, 18, 32, 25, 8, 2)
History
PagkadiskobreGlenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso (1944)
Physical properties
Phasemagahi
Density (near r.t.)12 g·cm−3
Melting point1449 K, 1176 °C, 2149 °F
Boiling point2880 K, 2607 °C, 4725 °F
Heat of fusion14.39 kJ·mol−1
Molar heat capacity62.7 J·mol−1·K−1
Vapor pressure
P (Pa)1101001 k10 k100 k
at T (K)12391356
Atomic properties
Oxidation states7, 6, 5, 4, 3, 2
(amphoteric oxide)
Electronegativity1.3 (Pauling scale)
Ionization energies1st: 578 kJ·mol−1
Atomic radius173 pm
Covalent radius180±6 pm
Miscellanea
Crystal structurehexagonal
Americium has a hexagonal crystal structure
Magnetic orderingparamagnetic
Electrical resistivity0.69[1] µΩ·m
Thermal conductivity10 W·m−1·K−1
CAS registry number7440-35-9
Most stable isotopes
Main article: Isotopes of americium
isoNAhalf-lifeDMDE (MeV)DP
241Amtrace432.2 ySF--
α5.486237Np
242mAmtrace141 yIT0.049242Am
α5.637238Np
SF--
243Amtrace7370 ySF--
α5.275239Np
· r

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