'Hydrogen'

' atomic number 1\n1H\n-\nâ†'\nH\nâ†"\nLi\n\n bimestrial table\n\n- ← henry â†' helium\n\n way\n colorless bollocks\n\nPurple cut in its plasm state\n\n unearthly lines of enthalpy\n world(a) properties\nName, symbol, tot up total heat, H, 1\nPronunciation /ˈhaɪdrÉ™dÊ'É™n/ HY-drÉ™-jÉ™n[1]\nElement division nonmetal\nGroup, period, lug 1, 1, s\n pattern atomic lading 1.008(1)\nElectron physique 1s1\n1\n\n muniment\nDiscovery henry Cavendish[2][3] (1766)\nNamed by Antoine Lavoisier[4] (1783)\n fleshly properties\nColor colorless\nPhase fellate\nDensity (0 °C, 101.325 kPa)\n0.08988 g/L\n fluidness density at m.p. 0.07 (0.0763 solid)[5] g·cmâˆ'3\n politic density at b.p. 0.07099 g·cmâˆ'3\n resolve check 14.01 K, -259.14 °C, -434.45 °F\nBoiling headland 20.28 K, -252.87 °C, -423.17 °F\n leash point 13.8033 K (-259°C), 7.042 kPa\nCritical point 32.97 K, 1.293 MPa\nHeat of coalescence (H2) 0.117 kJ· jettyâˆ'1\nHeat of vapour (H2) 0.904 kJ·molâˆ'1\nMolar set off capacity (H2) 28.836 J·molâˆ'1·Kâˆ'1\nVapor ram\nP (Pa) 1 10 coke 1 k 10 k 100 k\nat T (K) 15 20\n\nAtomic properties\n oxidisation states 1, -1\n(amphoteric oxide)\nElectronegativity 2.20 (Pauling scale)\nionisation energies 1st: 1312.0 kJ·molâˆ'1\ncovalent radius 31±5 pm\nVan der Waals radius 120 pm\nMiscellanea\n crystal structure hexagonal\nMagnetic ordination diamagnetic[6]\nThermal conductivity 0.1805 W·mâˆ'1·Kâˆ'1\n repair of sound ( gas, 27 °C) 1310 m·sâˆ'1\nCAS registry number 1333-74-0\n intimately stable isotopes\n primary(prenominal) article: Isotopes of enthalpy\niso NA half life DM DE (MeV) DP\n1H 99.985% 1H is stable with 0 neutrons\n2H 0.015% 2H is stable with 1 neutron\n3H trace 12.32 y βâˆ' 0.01861 3He\n\nv ·t ·e· r\n\nHydrogen is a chemical substance piece with symbol H and atomic number 1. With an average atomic weight of 1.00794 u (1.007825 u for hydrogen-1), hydrogen is the lightest element and its monatomic form (H1) is the virtuall y abundant chemical substance, constituting roughly 75% of the Universes baryonic mass.[7] Non-remnant stars are primarily composed of hydrogen in its plasm state.\n\nAt quantity temperature and pressure, hydrogen is a colorless, odorless, tasteless, non-toxic, nonmetallic, highly ignescent diatomic gas with the molecular verbal expression H2. Naturally occurring atomic hydrogen is rare on primer coat because hydrogen pronto forms covalent compounds with near elements and is present in the water scrap and in most organic compounds. Hydrogen plays a especially important spot in acid-base alchemy with many reactions exchanging protons amidst soluble molecules.\n\nIn ionic compounds, it nooky take a negative dismantle (an anion known as a hydride and scripted as Hâˆ'), or as a positively charged...If you want to becharm a proficient essay, order it on our website:

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