Brint
1
H
Gruppe
1
Periode
1
Blok
s
Protoner
Elektroner
Neutroner
1
1
0
Generelle Egenskaber
Atomnummer
1
Atommasse
1,00794
Masseantal
1
Kategori
Andre ikke-metaller
Farve
Farveløs
Radioaktiv
Nej
From the Greek word hydro (water), and genes (forming)
Krystalstruktur
Simpel Hexagonal
Historie
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.
Elektroner i hver skal
1
Elektronkonfiguration
1s1
Hydrogen is the primary component of Jupiter and the other gas giant planets
Fysiske Egenskaber
Tilstandsform
Gas
Massefylde
0,00008988 g/cm3
Smeltepunkt
14,01 K | -259,14 °C | -434,45 °F
Kogepunkt
20,28 K | -252,87 °C | -423,17 °F
Smeltevarme
0,558 kJ/mol
Fordampningsvarme
0,452 kJ/mol
Varmefylde
14,304 J/g·K
Forekomst i jordskorpen
0,15%
Forekomst i universet
75%
CAS-nummer
1333-74-0
PubChem CID-nummer
783
Atomare egenskaber
Atomradius
53 pm
Kovalent radius
31 pm
Elektronegativitet
2,2 (Paulings skala)
Ioniseringspotentiale
13,5984 eV
Atomvolumen
14,4 cm3/mol
Varmeledningsevne
0,001815 W/cm·K
Oxidationstrin
-1, 1
Anvendelser
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
Isotoper
Stabile isotoper
1H, 2HUstabile isotoper
3H, 4H, 5H, 6H, 7H