ks4 transition metals

7/27/2019 KS4 Transition Metals

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Boardworks Ltd 2003

THE TRANSITION

METALS


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The Transition elements

Transition means an in between state and

the transition elements come in between

Group 2 and Group 3.

Sc Ti V Cr Mn Fe Co Ni Cu Zn

Y Zr Nb Mo Tc Ru Pd Ag CdRh

Hf Ta W Re Os Ir Au HgLa Pt

Rf Db Sg Bh Hs Mt ? ?Ac ?

H

Li

Na

K

Rb

Cs

Fr

Be

Mg

Ga Ge Se BrCa Kr

In Sn SbSr Te

Ba Tl Pb Bi Po At

Ra

Al P

N O

S Cl

F Ne

Ar

Rn

I

Si

Xe

He

B C

As

Gp 2 Gp 3

Transition Elements


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General Characteristics

They are less reactive

than Group 1 or

Group 2 metals.

They mostly form

coloured

compounds.

They have

high melting

points.

They have

high density.

Transition metals

are often referred to

as typical metals.

Transition

Elements

They often

act as

catalysts.


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Properties density

Similarities are more noticeable than differences

although there are still some broad patterns. They are all dense which is what we expect of

metals.

0

1

2

34

5

6

7

8

9

Density (g/cm-3)

Sc

Ti

V

Cr

Mn

Fe

Co

Ni

Cu

Zn



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Properties melting point

Melting points show no regular pattern other than

nearly all being high which is typical of metals.(Note zinc doesnt fit very well on either density ormelting point.)

0

200

400

600

8001000

1200

1400

1600

1800

2000

Melting Point ( C)

Sc

Ti

V

Cr

MnFe

Co

Ni

Cu

Zn



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Properties reactivity

Again it is similarities that stand out

rather than differences: they tend toreact relatively slowly (e.g.) with air,water and acid.

The general trend is to reduced activity

across the Periodic Table but again thetrend is far from perfect with zinc inparticular being more reactive than youmight expect.


General reduced reactivity

Rusting:

a slow

but

costly

process!


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Properties catalysis

A catalyst is a substance that speeds up a

chemical reaction without being used up. Catalysts are hugely valuable in industry

where they can save time and energy.

Many transition elements ( and theircompounds) are catalysts.

V

Ti

Used in plastic

manufacture

Fe

Ni

Used in oil

hydrogenation


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Uses

The three most commonly known transition

elements are iron or steel, copper and zinc.

iron or

steel

General

engineering

metal

copper

Electrical

and

plumbing

work

zinc

Galvanising

steel to

protect it


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Pair the metal up with its uses

iron or

steel

copper

zinc



Pair the metal catalyst with the substance.

V

Ti

Fe

Ni



Pair the statement about the transition

elements with the words.

The **** elements fitbetween group 2 and 3.

catalysts

They tend to be very**** reactive

Most are not especially *** colouredThey are all typical**** similar

They often form compounds

that are ****

transition

They often speed up

reactions by acting as ****

metals



Which is a true statement about most

transition elements?

A. They are non-metals.

B. They are light (low density).

C. They are strong.

D. They are non-conductors.



Which of these does copperNOTtend to be

used for?

A. Plumbing work.

B. Electrical work

C. Ornaments and jewellery

D. Tools



Transition elements can speed up other

reactions without getting used up in theprocess.

What do we call substances that do this?

A. Capitalists

B. Catalysts

C. Catholics

D. Catapults



Transition elements often form coloured

compounds.What colour compound does copperusually form?

A.Blue

B.Yellow

C.Red

D.Violet


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How would you describe the reactivity

of transition elements within thePeriodic Table?

A.Always more reactive across periods(left to right).

B.Generally less reactive acrossperiods (left to right).

C.No change in reactivity.D.Changes but no trends in reactivity.

ks4 transition metals

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