Logam alkali taneuh nyaéta genep unsur kimia dina golongan 2 tabél périodik:bérilium (Be), magnésium (Mg), kalsium (Ca), strontium (Sr), barium (Ba), jeung radium (Ra). Unsur-unsur ieu mibanda pasipatan anu sarupa: ngagurilap, bodas pérak, logam rada réaktif dina suhu jeung tekanan baku.[1] Sacara stuktur, maranéhna (jeung hélium) papada boga s-orbital pinuh:[1][2][3] ieu orbital dua éléktron lengkep anu siap dileupaskeun pikeun ngabentuk kation anu boga muatan +2, sarta kaayaan oksidasi +2.
Fakta Singget IUPAC group number, ↓ Periode ...
Logam alkali taneuh |
Hydrogen |
|
Helium |
Lithium |
Beryllium |
|
Boron |
Carbon |
Nitrogen |
Oxygen |
Fluorine |
Neon |
Sodium |
Magnesium |
|
Aluminium |
Silicon |
Phosphorus |
Sulfur |
Chlorine |
Argon |
Potassium |
Calcium |
Scandium |
|
Titanium |
Vanadium |
Chromium |
Manganese |
Iron |
Cobalt |
Nickel |
Copper |
Zinc |
Gallium |
Germanium |
Arsenic |
Selenium |
Bromine |
Krypton |
Rubidium |
Strontium |
Yttrium |
|
|
Zirconium |
Niobium |
Molybdenum |
Technetium |
Ruthenium |
Rhodium |
Palladium |
Silver |
Cadmium |
Indium |
Tin |
Antimony |
Tellurium |
Iodine |
Xenon |
Caesium |
Barium |
Lanthanum |
Cerium |
Praseodymium |
Neodymium |
Promethium |
Samarium |
Europium |
Gadolinium |
Terbium |
Dysprosium |
Holmium |
Erbium |
Thulium |
Ytterbium |
Lutetium |
Hafnium |
Tantalum |
Tungsten |
Rhenium |
Osmium |
Iridium |
Platinum |
Gold |
Mercury (element) |
Thallium |
Lead |
Bismuth |
Polonium |
Astatine |
Radon |
Francium |
Radium |
Actinium |
Thorium |
Protactinium |
Uranium |
Neptunium |
Plutonium |
Americium |
Curium |
Berkelium |
Californium |
Einsteinium |
Fermium |
Mendelevium |
Nobelium |
Lawrencium |
Rutherfordium |
Dubnium |
Seaborgium |
Bohrium |
Hassium |
Meitnerium |
Darmstadtium |
Roentgenium |
Copernicium |
Nihonium |
Flerovium |
Moscovium |
Livermorium |
Tennessine |
Oganesson |
|
IUPAC group number | 2 |
Name by element | golongan berilium |
Trivial name | logam alkali taneuh |
CAS group number (US, pattern A-B-A) | IIA |
old IUPAC number (Europe, pattern A-B) | IIA |
|
↓ Periode |
2 |
Beryllium (Be) 4 |
3 |
Magnesium (Mg) 12 |
4 |
Calcium (Ca) 20 |
5 |
Strontium (Sr) 38 |
6 |
Barium (Ba) 56 |
7 |
Radium (Ra) 88 |
Legend
unsur primordial |
unsur dumasar luruh radioaktip |
Atomic number color: black=solid |
|
|
Tutup
Sadaya logam alkali taneuh nu geus kapanggih kabentuk alami, najan radium ngan ukur kabentuk tina ranté luruh uranium jeung torium, lain unsur primordial.[4]