Question

What are the properties of actinides?

Answer 1

Answer:

All are radioactive. These elements have no stable isotopes.

Actinides are highly electropositive.

The metals tarnish readily in air. These elements are pyrophoric (spontaneously ignite in the air), particularly as...

Actinides are very dense metals with distinctive structures. Numerous allotropes can be formed—plutonium has at least...

They react with boiling water or dilute acid to release hydrogen gas.

Explanation:

Answer 2

Answer:

Actinides share the following properties:

All are radioactive. ...

Actinides are highly electropositive.

The metals tarnish readily in air. ...

Actinides are very dense metals with distinctive structures. ...

They react with boiling water or dilute acid to release hydrogen gas.

Actinide metals tend to be fairly soft.