24.1 d-Block Elements

Question 1

What are the properties of d-block elements?

Answer 1

All metallic, high mp and bp, shiny, conduct electricity and heat

Question 2

What is different about the electron configuration of copper and chromium?

Answer 2

They donate an electron from their 4s subshell to their 3d subshell

Question 3

What is a transition element?

Answer 3

A d-block element that forms at least 1 ion with a partially-filled d-orbital

Question 4

What are the properties of transition elements?

Answer 4

• Form compounds in which the transition metal has different oxidation states
• Form coloured compounds
• Elements and their compounds can act as catalysts

Question 5

A species containing a transition element in its highest oxidation state is often a…

Answer 5

Strong oxidising agent

Question 6

What colour are Iron(II) ions?

Answer 6

Green

Question 7

What colour are Iron(III) ions?

Answer 7

Yellow/brown

Question 8

What colour are Chromium(III) ions?

Answer 8

Green

Question 9

What colour are Chromium(VI) ions?

Answer 9

Yellow/orange

Question 10

What colour are Vanadium(II) ions?

Answer 10

Purple

Question 11

What colour are Vanadium(III) ions?

Answer 11

Green

Question 12

What colour are Vanadium(IV) ions?

Answer 12

Blue

Question 13

What colour are Vanadium(V) ions?

Answer 13

Yellow