1A: Alkali Metals Flashcards
H, Li, Na, K, Rb, Cs, Fr, NH4
Alkali Metals
Most _________ grp, soluble grp
reactive
Seldom found ______ nature
Free
Valence:
+1
Most abundant element in the universe __________ ; second is _____________
Hydrogen; Lithium
- water forming: when burned w/ O2
- inflammable air
Hydrogen
____________ element; element common to all _____
(Hydrogen)
Lightest; acids
Prep: __________________ (99% pure H2- conversion of water to H2)
(Hydrogen)
Messerschmidt process
Hydrogen Isotopes
- protium
- deuterium
- tritium
Most abundant
(Hydrogen isotopes)
Protium
Heavy (D2O: heavy water/_________ water, solvent for NMR)
(Hydrogen isotopes)
deuterium
Radioactive
(Hydrogen isotopes)
Tritium
Industrial uses of hydrogen
- haber’s process (N2 + 3H2 -> 2NH3 @ high pressures)
- oil hydrogenation (margarine production)
- balloon inflation
- gas chromatography gas carrier / mobile phase (also He - most common mobile phase in GC; N)
Lithos (earth, rock)
Lithium
Lithium is the _______ metal
Lightest
Use of Lithium
Depressant and Diuretic; mood stabilizer sedative