बेरिलियम

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| colspan=2 style="text-align: center" | Main article: Isotopes of बेरिलियम

बेरिलियम
Be
-

Be

Mg
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)

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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)

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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 (expression error: unrecognized punctuation character "�".)
Darmstadtium (expression error: unrecognized punctuation character "�".)
Roentgenium (expression error: unrecognized punctuation character "�".)
Copernicium (transition metal)
Ununtrium (expression error: unrecognized punctuation character "�".)
Flerovium (expression error: unrecognized punctuation character "�".)
Ununpentium (expression error: unrecognized punctuation character "�".)
Livermorium (expression error: unrecognized punctuation character "�".)
Ununseptium (expression error: unrecognized punctuation character "�".)
Ununoctium (expression error: unrecognized punctuation character "�".)

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लिथियमबेरिलियमबोरोन
रुप
white-gray metallic
250px
साधारण गुण
नां, चिं, ल्या बेरिलियम, Be, ४
धातुया वर्ग alkaline earth metal
ग्रुप, पिरियद, ब्लक 22, s
Standard atomic weight 9.012182(3)
Electron configuration 1s2 2s2
2, 2
Physical properties
Phase solid
Density (near r.t.) 1.85 g·cm−3
Liquid density at m.p. 1.690 g·cm−3
Melting point 1560 K, 1287 °C, 2349 °F
Boiling point 2742 K, 2469 °C, 4476 °F
Heat of fusion 7.895 kJ·mol−1
Heat of vaporization 297 kJ·mol−1
Molar heat capacity 16.443 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1462 1608 1791 2023 2327 2742
Atomic properties
Oxidation states 2
(amphoteric oxide)
Electronegativity 1.57 (Pauling scale)
Ionization energies
(more)
1st: 899.5 kJ·mol−1
2nd: 1757.1 kJ·mol−1
3rd: 14848.7 kJ·mol−1
Atomic radius 105 pm
Atomic radius (calc.) 112 pm
Covalent radius 90 pm
Miscellanea
Crystal structure hexagonal
बेरिलियम has a hexagonal crystal structure
Magnetic ordering diamagnetic
Thermal conductivity 200 W·m−1·K−1
Thermal expansion (25 °C) 11.3 µm·m−1·K−1
Speed of sound (thin rod) (20 °C) 35.6 n m·s−1
Speed of sound (thin rod) (r.t.) 12870 m·s−1
Young's modulus 287 GPa
Shear modulus 132 GPa
Bulk modulus 130 GPa
Poisson ratio 0.032
Mohs hardness 5.5
Vickers hardness 1670 MPa
Brinell hardness 600 MPa
CAS registry number 7440-41-7
Most stable isotopes
iso NA half-life DM DE (MeV) DP
7Be trace 53.12 d ε - 7Li
γ 0.477 -
9Be 100% Be एलेमेन्ट 5 न्युट्रोन नाप स्टेबल जु
10Be trace 1.51×106 y β- 0.556 10B
· r


बेरिलियम छगु रसायनिक तत्त्व ख। थ्व तत्त्वया चिं Beआणविक ल्याखं ४ ख। छगु बाइभ्यालेन्ट तत्त्व, तात्त्विक वेरिलियम छगु स्टील खरानी रंगया बल्लागु, याउंगु व ब्रिटल अल्कालाइन अर्थ धातु ख। थ्व तत्त्वया मू छ्येलेज्या अलोइ बल्लाकिगु थासे जुइ।