Properties of Metals Flashcards
Chemists classify an element as a metal based on…
physical properties.
Are most elements metals?
yes
What are the physical properties of metals?
Shininess, malleability, ductility, and conductivity.
The metals in a group, or family, have…
similar properties.
Family properties…as you move across the table.
Family properties change gradually as you move across the table.
What happens to the reactivity of metals as you move from left to right across the periodic table?
It tends to decrease.
The metals in Group 1 are the…
Alkali metals.
The metals in Group 2 are the…
Alkaline earth metals.
Are alkaline earth metals more reactive than alkali metals?
No. Alkali metals are more reactive. Although, alkaline earth metals are still very reactive and they cannot be found uncombined in nature.
The metals in Groups 3-12 are the…
transition metals.
The transition metals form a bridge between the…and the…and…
The transition metals form a bridge between the very reactive metals on the left and the less reactive metals and other elements on the right.
The transition metals form a bridge between the…and the…and…
The transition metals form a bridge between the very reactive metals on the left and the less reactive metals and other elements on the right.
Groups 13-15 of the periodic table include…
metals, nonmetals and metalloids.
The metals in Groups 13-15(metals, nonmetals and metalloids) are not nearly as reactive as those on the…
left side of the table.
The elements placed below the periodic table are called the…
lanthanides and actinides.
Lanthanides are mixed with more common metals to make…
alloys (a mixture of metals).
Many of the actinides are…
synthetic elements.
Elements above uranium are made-or synthesized-when …
nuclear particles are forced to crash into one another.
Elements above uranium are made-or synthesized-when …
nuclear particles are forced to crash into one another.
What does ductility mean?
The ability for a solid material to stretch under tensile stress. If ductile, a material may be stretched into a wire.
What does malleability mean?
a material’s ability to deform under pressure. If malleable, a material may be flattened by hammering or rolling.
What does conductivity mean?
ability to conduct electricity.
