Transition Metals
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Transition Metal
A metal that can form one or more stable ions with a partially filled d-sub shell
Describe electronic configuration of chromium
Prefers to have one electron in each orbital of the 3d sub level and just one in the 4s sub level- gives it more stability
Describe electronic configuration of copper
Prefers to have a full 3d sub level and just one electron in the 4s sub level- it’s more stable
Explain why scandium isn’t a transition metal?
Forms Sc 3+ ions. These have empty d sub levels
Explain why zinc isn’t a transition metal?
Forms Zn 2+ ions. These have full d sub levels
Transition Metals and the Formation of their Ions Describe
Form positive ions. S electrons are removed first, then the d electrons
Three Similar Physical Properties of Transition Metals
• They all have a high density • They all have high melting and boiling points • Their ionic radii are more or less the same
Four Special Chemical Properties of Transition Metals
• They can form complex ions • They form coloured ions • They’re good catalysts • They can exist in variable oxidation states