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A-level chemistry > Transition Metals > Flashcards

Transition Metals Flashcards

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1
Q

What happens when you mix an aqueous solution of transition element ions with aqueous sodium hydroxide or aqueous ammonia?

A

You get a coloured hydroxide precipitate

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2
Q

In aqueous solutions what form do transition elements make?

A

[M(H2O)6}N+ — a hex aqua complex

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3
Q

What colour are manganese 7+ ions?

A

purple

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4
Q

What colour are manganese 6+ ions?

A

Green

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5
Q

What colour are manganese 2+ ions?

A

PAle pink

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6
Q

What colour are titanium 3+ ions?

A

Purple

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7
Q

What colour are titanium 2+ ions?

A

Violet

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8
Q

What colour are vanadium 5+ ions?

A

Yellow

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9
Q

What colour are vanadium 4+ ions?

A

Blue

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10
Q

What colour are vanadium 3+ ions?

A

Green

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11
Q

What colour are vanadium 2+ ions?

A

Violet

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12
Q

What colour are chromium 6+ ions?

A

Orange

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13
Q

What colour are chromium 3+ ions?

A

Green

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14
Q

What colour are iron 3+ ions?

A

Yellow

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15
Q

What colour are iron 2+ ions?

A

Pale green

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16
Q

What colour are cobalt 2+ ions?

A

Pink

17
Q

What colour are nickel 2+ ions?

A

Green

18
Q

What colour are copper 2+ ions?

A

pale blue

19
Q

What is the electronic configuration of vanadium?

A

1s2,2s2,2p6,3s2,3p6,4s2,3d3

20
Q

What is the definition of a transition element?

A

A transition element is a d-block element that can form at least one stable ion with an incomplete sub shell

21
Q

Which two d block elements are not transition elements?

A

Scandium and zinc

22
Q

Which two d block elements substitute a 4s electron to complete their 3d sub shell?

A

Chromium and copper

23
Q

Why do chromium and copper fill weirdly?

A

To allow their 3d subshell to be more stable

24
Q

Why are scandium and zinc not transition elements?

A

Because in their ion state they have a complete d subshell

A-level chemistry (15 decks)

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