The Hydrogen (periodic element N°1) • Shortlink
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Last updated by Mattia Cola - Vie, 22/02/2013 - 17:43HYDROGEN
(from Greek: "which produces water)
SYMBOL: H
ATOMIC NUMBER: 1
ATOMIC WEIGHT ( g\mol): 1,0079
NORMAL STATE: gaseous
DENSITY ( g*cm-3): 0,070
MELTING POINT (°C): -259
BOILING POINT (°C): -253
IONIZATION ENERGY ( kj\mol): 1310
ELECTRON AFFINITY (Kj\mol): +73
ELECTRONEGATIVITY: +73
MAIN OXIDATION STATES: -1; +1
ATOMIC RADIUS (pm): 78
IONIC RADIUS (pm): 154
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