d and f BLOCK ELEMENTS

Which acid attacks all actinoid metals according to the text?

• Nitric acid
• Sulfuric acid
• Phosphoric acid
• Hydrochloric acid

What products are formed when boiling water reacts with actinoid metals?

• Only oxygen gas and metal hydroxide.
• Only hydrogen gas and metal oxide.
• A mixture of oxide and hydride.
• Only metal hydroxide.

What is a general characteristic of the reactivity of actinoid metals?

• They are generally unreactive.
• They are highly reactive, especially when finely divided.
• They are only reactive with acids.
• They are completely inert.

Which block of elements includes the actinoids?

• s-Block
• p-Block
• d-Block
• f-Block

Based on the text's description of oxidation state trends, what would be the expected maximum oxidation state for Plutonium (Pu)?

• +4
• +5
• +6 or +7
• +8