19 July, 02:40
Which is not a characteristic of metals?
a. Most metal oxides are ionic solids that are basic.
b. They have a shiny luster and various colors, although most are silvery.
c. Solids are malleable and ductile.
d. They are poor conductors of heat and electricity.
19 July, 03:24
Answer: d: They are poor conductors of heat and electricity.
Although is common knowledge that metals are characterized by high electrical conductivity and heat conductivity, these properties can be justified by looking at the metallic bonding.
In a metal, the bonding electrons are delocalized over the entire crystal. In fact, metal atoms in a crystal can be imagined as an array of positive ions immersed in a sea of delocalized valence electrons. The mobility of the delocalized electrons makes metals good conductors of heat and electricity.
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» Which is not a characteristic of metals? a. Most metal oxides are ionic solids that are basic. b. They have a shiny luster and various colors, although most are silvery. c. Solids are malleable and ductile. d.