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year 9 science
year 9 transition metals
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Cards (28)
What should you be able to describe by the end of the video?
Properties
and reactivity of
transition elements
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Where are metals located on the periodic table?
On the
left side
of the periodic table
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What are transition elements classified as?
Metals
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What are the metals in group one called?
Alkaline
metals
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What is a key feature of alkaline metals regarding their texture?
They are
soft
and can be cut easily
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How do alkaline metals behave in terms of melting points?
They have relatively
low
melting points
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What does low density mean for alkaline metals?
They have low
mass
for their
volume
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Which alkaline metals are less dense than water?
Lithium
,
sodium
, and
potassium
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How do alkaline metals react with oxygen, chlorine, and water?
They react very
rapidly
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What charge do alkaline metals form when they react?
One
positive
charge
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What is a key property of transition elements compared to alkaline metals?
They are
hard
and
strong
metals
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What is the melting point characteristic of transition elements?
They have high
melting points
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What is the exception among transition elements regarding state at room temperature?
Mercury
is a liquid
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How do transition elements compare in density to alkaline metals?
They have
high
density
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How do transition elements react with oxygen, chlorine, and water?
They
react
slowly
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Why are transition elements useful in practical applications?
Due to their
low reactivity
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What type of ions do transition elements form when they react?
Positive charge
ions
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How do transition elements differ in ion formation compared to alkaline metals?
They can form ions with
different charges
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What charges can iron form when it reacts?
Two positive or
three
positive ions
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What charges can nickel form when it reacts?
Two
positive
or
four
positive ions
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What is a notable property of transition elements regarding their compounds?
They form
colored
compounds
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What color is iron oxide?
Reddish
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What color is manganese chloride?
Pink
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What color is chromium chloride?
Purple
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What color is copper sulfate?
Blue
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What is the role of catalysts in chemistry?
To increase the rate of
reactions
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What will be covered in later videos regarding transition elements?
Examples of transition elements as
catalysts
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What are the key properties of transition elements compared to alkaline metals?
Hard and strong metals
High melting points
High density
Less reactive than alkaline metals
Can form ions with different charges
Form colored compounds
Useful as catalysts
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