The Transition Metals Flashcards
(8 cards)
Where are the transition metals located?
Between groups 2 and 3
What are the properties of transitions metals?
High melting points High boiling points High densities - useful in construction Shiny when polished Malleable Strong Sonorous (make ringing sounds when hit) Ductile (can b stretched into wires) Conductors of heat and electricity
Compare the alkali metals to the transition metals
e.g melting points, reactivity,strength,density and compounds formed
alkali transition
Low melting high melting points apart
points from mercury
High reactivity Low reactivity
-vigorous reactions -do not react so
with water or oxygen vigorously w/ O2
soft or liquid so Strong and hard
cannot withstand force
Low density and float high density
on water
white or colourless form coloured
compounds are formed compounds
What are the uses of the transition metals?
Catalysts to speed up a chemical reaction
Why are the transition metals valuable in industry?
The transition metals can be useful as catalysts to speed up chemical reactions.
This is useful in industry because it saves time and energy.
What are two example uses f transition metals as catalysts?
Iron - hater process to produce ammonia
Nickel - used in the hydrogenation of oil to produce margarine
What properties does copper have to make it useful for plumbing or electrical wiring?
Not very reactive so will not rust due to water and oxygen
Excellent conductor of electricity
Ductile
Malleable-easily bent into shape for water pipes.
Transition metals form i….with….
ions with different positive charges