Group 1A & 1B metals Flashcards
how many valence electrons are there in Group 1A
one valence electron
Group 1A metals are also called
the alkali metals
principal metals compromising Group 1A
Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium
Francium exists as what
an unstable radioactive species
oxidation # of group 1A metals when bonded to other elements
+1 oxidation
weak hydroxide
LiOH
bond with hydrogen
hydrides
bond with halogens
halides
Lithium plus oxygen
Normal oxide (Li2O)
Normal oxide
Lithium oxide
Sodium plus oxygen
Sodium peroxide (Na2O2)
what forms superoxides
Potassium, Rubidium, and Cesium
oxidation state of a superoxide
-1/2
alkali plus water
hydrogen gas and metallic hydroxides
sodium emits
yellow color
potassium emits
violet
cesium emits
carmine red
Group 1B is called
Coinage metals
Measure of the tendency if an atom to resist the loss of an electron
Ionization energy
Ag(NH3)2
Silver Diamine Complex
Coinage metals
copper, silver, gold
Measure of the attraction or tendency of an electron to gain an electron
Electron affinity
Measure of the ability of an atom to attract electrons
Electronegativity
Monovalent state of group 1b
ion is colorless and diamagnetic
