ଛାଞ୍ଚ:Infobox beryllium

ଉଇକିପିଡ଼ିଆ ରୁ
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Beryllium,  4Be
Be-140g.jpg
ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକberyllium, Be
Appearancewhite-gray metallic
ଉଚ୍ଚାରଣ /bəˈrɪliəm/ bə-RIL-ee-əm
Beryllium 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)
-

Be

Mg
lithiumberylliumboron
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)4
ଶ୍ରେଣୀ, ବ୍ଳକgroup 2 (alkaline earth metals), s-block
ପର୍ଯ୍ୟାୟperiod 2
ମୌଳିକ ପ୍ରକାର  alkaline earth metal
ମାନକ ପରମାଣବିକ ଓଜନ (±) (Ar)9.012182(3)
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ[He] 2s2
per shell
2, 2
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥାsolid
ଗଳନାଙ୍କ1560 K ​(1287 °C, ​2349 °F)
ସ୍ଫୁଟନାଙ୍କ2742 K ​(2469 °C, ​4476 °F)
Density near r.t.1.85 g/cm3
when liquid, at m.p.1.690 g/cm3
Heat of fusion12.2 kJ/mol
Heat of 297 kJ/mol
Molar heat capacity16.443 J/(mol·K)
 pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1462 1608 1791 2023 2327 2742
Atomic properties
Oxidation states2, 1[୧]amphoteric oxide
ElectronegativityPauling scale: 1.57
energies
(more)
Atomic radiusempirical: 112 pm
Covalent radius96±3 pm
Van der Waals radius153 pm
Miscellanea
Crystal structurehexagonal close-packed (hcp)
Hexagonal close packed crystal structure for beryllium
Speed of sound thin rod12870[୨] m/s (at r.t.)
Thermal expansion11.3 µm/(m·K) (at 25 °C)
Thermal conductivity200 W/(m·K)
Electrical resistivity36 n Ω·m (at 20 °C)
Magnetic orderingdiamagnetic
Young's modulus287 GPa
Shear modulus132 GPa
Bulk modulus130 GPa
Poisson ratio0.032
Mohs hardness5.5
Vickers hardness1670 MPa
Brinell hardness600 MPa
CAS Number7440-41-7
ଇତିହାସ
ଆବିଷ୍କାରLouis Nicolas Vauquelin (1797)
First isolationFriedrich Wöhler & Antoine Bussy (1828)
Most stable isotopes of beryllium
iso NA half-life DM DE (MeV) DP
7Be trace 53.12 d ε 0.862 7Li
γ 0.477 -
9Be 100% 9Be is stable with 5 neutrons
10Be trace 1.36×106 y β 0.556 10B
| references

References

  1. "Beryllium: Beryllium(I) Hydride compound data" (PDF). bernath.uwaterloo.ca. Retrieved 2007-12-10.
  2. Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. p. 14-39. ISBN 0-8493-0486-5.