Hidrogen
1
H
Kumpulan
1
Kala
1
Blok
s
Proton
Elektron
Neutron
1
1
0
Ciri-Ciri Am
Nombor atom
1
Berat atom
1.00794
Nombor jisim
1
Kategori
Bukan logam
Warna
Tidak berwarna
Radioaktif
Tidak
Daripada perkataan Yunani hydro (air), dan genes (membentuk)
Struktur hablur
Hexagonal Ringkas
Sejarah
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.
Bilangan elektron per petala
1
Konfigurasi elektron
1s1
Hydrogen is the primary component of Jupiter and the other gas giant planets
Ciri-Ciri Fizikal
Fasa
Gas
Ketumpatan
0.00008988 g/cm3
Takat lebur
14.01 K | -259.14 °C | -434.45 °F
Takat didih
20.28 K | -252.87 °C | -423.17 °F
Haba pelakuran
0.558 kJ/mol
Haba pengewapan
0.452 kJ/mol
Muatan haba molar
14.304 J/g·K
Banyak pada kerak bumi
0.15%
Banyak pada alam semesta
75%
Nombor CAS
1333-74-0
Nombor PubChem CID
783
Ciri-Ciri Atom
Jejari atom
53 pm
Jejari kovalen
31 pm
Keelektronegatifan
2.2 (Skala Pauling)
Kebolehan mengion
13.5984 eV
Isipadu atom
14.4 cm3/mol
Daya pengaliran terma
0.001815 W/cm·K
Keadaan pengoksidaan
-1, 1
Aplikasi
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
Isotop
Isotop stabil
1H, 2HIsotop tidak stabil
3H, 4H, 5H, 6H, 7H