D-block Elements: the Transition Metals

D-block Elements: the Transition Metals

Transition Element

• Labeled with "B" to distinguish them from the Representative "A" elements

• Their electrons enter into the d sublevel

• Located in the center of the periodic table

• Properties of what we characteristically think of as metals

Ions of Transition Metals

• Transition elements can form multiple ions called "oxidation states"

• Copper can be Cu+ or Cu 2+

• Iron can be Fe 2+ or Fe3+

• Physical properties and reactivities are determined by electron configuration

• Different ions can be observed by color changes

Magnetism

• Ferromagnetism is a strong attraction of a magnetic field due to ions

• Cobalt, nickel, and iron are all magnetic metals

Natural Transition Elements

• Copper, silver, gold, platinum, and palladium are found in nature in a pure state

• Other transition metals are found as ores

• Metallurgy

Multiple Select

Copper is used in electrical wiring. It is a transition metal. Which property makes it good to be used in wires?

• it cannot conduct electricity

• it can be stretched into long thin shapes

Multiple Choice

Fe²⁺ and Fe³⁺ are both ions of iron. What is different about them?

• they have different numbers of protons

• they have different numbers of neutrons

• they have a different charge

• they are different elements

Multiple Select

Choose all of the transition metals from the list below

• potassium

• manganese

• copper

• beryllium

• cobalt

Multiple Select

Which of the following is correct for transition metals?

• They can conduct electricity

• The cannot conduct electricity

• They cannot conduct heat

• They can conduct heat

Multiple Choice

When compared to group 1 metals, the transition metals are...

• less reactive

• more reactive

Multiple Choice

When compared to group 1 metals, the transition metals are...

• weaker

• stronger

Multiple Choice

When compared to group 1 metals, the transition metals are...

• harder

• softer

Multiple Choice

true or false: The transition metals do not form coloured compounds. They are all white or grey.

• true

• false

Multiple Choice

The transition elements form a ________ of about 30 Metals in the________ of the Periodic Table.

• Block & catalysts

• Block & Middle

• Catalysts & Coloured

• High & Middle

Multiple Choice

Transition metals are ____

• metals
• nonmetals
• halogens
• metalloids

Multiple Choice

What are elements in groups 3-12 called?

• nonmetals
• metals
• halogens
• transition elements