Vodik
1
H
Skupina
1
Perioda
1
Blok
s
Protons
Electrons
Neutrons
1
1
0
General Properties
Vrstno število
1
Atomska teža
1,00794
Mass Number
1
Kategorija
Druge nekovine
Barva
Brezbarven
Radioactive
Ne
From the Greek word hydro (water), and genes (forming)
Kristalna struktura
Heksagonalna
Zgodovina
Henry Cavendish was the first to distinguish hydrogen from other gases in 1766 when he prepared it by reacting hydrochloric acid with zinc.
In 1670, English scientist Robert Boyle had observed its production by reacting strong acids with metals.
French scientist Antoine Lavoisier later named the element hydrogen in 1783.
In 1670, English scientist Robert Boyle had observed its production by reacting strong acids with metals.
French scientist Antoine Lavoisier later named the element hydrogen in 1783.
Electrons per shell
1
Razporeditev elektronov
1s1
Hydrogen is the primary component of Jupiter and the other gas giant planets
Physical Properties
Faza snovi
Plin
Gostota
0,00008988 g/cm3
Tališče
14,01 K | -259,14 °C | -434,45 °F
Vrelišče
20,28 K | -252,87 °C | -423,17 °F
Talilna toplota
0,558 kJ/mol
Izparilna toplota
0,452 kJ/mol
Toplotna kapaciteta
14,304 J/g·K
Abundance in Earth's crust
0,15%
Abundance in Universe
75%
CAS Number
1333-74-0
PubChem CID Number
783
Atomic Properties
Atomski polmer
53 pm
Kovalentni polmer
31 pm
Elektronegativnost
2,2 (Paulingova lestvica)
Ionization Potential
13,5984 eV
Atomic Volume
14,4 cm3/mol
Toplotna prevodnost
0,001815 W/cm·K
Oksidacijska stanja
-1, 1
Applications
Liquid hydrogen is used as a rocket fuel.
Hydrogen is commonly used in power stations as a coolant in generators.
Hydrogen's two heavier isotopes (deuterium and tritium) are used in nuclear fusion.
Used as a shielding gas in welding methods such as atomic hydrogen welding.
Hydrogen is commonly used in power stations as a coolant in generators.
Hydrogen's two heavier isotopes (deuterium and tritium) are used in nuclear fusion.
Used as a shielding gas in welding methods such as atomic hydrogen welding.
Hydrogen poses a number of hazards to safety, from fires when mixed with air to being an asphyxiant in its pure form
Isotopes
Stable Isotopes
1H, 2HUnstable Isotopes
3H, 4H, 5H, 6H, 7H