Metals Flashcards
Atomic Orbitals involved in bonding actually combine to form new orbitals are called,
Hybridization
In band theory, metals are viewed as an array of positive ions immersed in a sea of delocalized electrons.
False
Metals as good conductors of heat and electricity are explained by band theory.
True
Elements that normally are not conductors but will conduct electricity at elevated temperatures are called,
Semiconductor
Alkaline earth metals include the most reactive of the all the metallic elements.
False
Metals on the left of the d block generally occur as?
Oxides
Which metals are found uncombined in nature?
Gold
Science of extracting metals?
Metallurgy
Iron alloy with 0.1%-2.5% carbon is?
Steel
Naturally occurring metal for economical recovery?
Ore
First step in metallurgical process?
Concentration
Process involving heating minerals in air?
Roasting
Reduction method for most active metals?
Electrolysis
Filament metal for light bulbs?
Tungsten
Method increasing zinc purity to 99.9%?
Distillation
Oxidized at impure copper anode?
Cu2+
Combined orbitals in bonding are called?
Hybridization
Theory explaining metal conductivity?
Band Theory
Conductors at elevated temperatures?
Semiconductors
Delocalized electrons act as?
Glue
Property allowing metals to be hammered?
Malleable
Theory for free electron travel in metals?
Band Theory
Most abundant metal in the body?
Calcium
Disease causing poor copper absorption?
Menkes Disease
