Which statement describes the properties of lanthanoids and actinoids?(1 point)
Responses
They are malleable and lustrous, and they tend to be poor conductors of both electricity and thermal energy.
They are malleable and lustrous, and they tend to be poor conductors of both electricity and thermal energy.
They are brittle and dull, and they tend to conduct both electricity and thermal energy.
They are brittle and dull, and they tend to conduct both electricity and thermal energy.
They are brittle and dull, and they tend to be poor conductors of both electricity and thermal energy.
They are brittle and dull, and they tend to be poor conductors of both electricity and thermal energy.
None of the provided responses accurately describe the properties of lanthanoids (also known as lanthanides) and actinoids (also known as actinides). Here's a statement that accurately describes their properties:
Lanthanoids and actinoids are typically malleable, lustrous, and good conductors of electricity and heat. They are generally similar to the transition metals in their behaviors and characteristics. The lanthanoids are known for their magnetic properties and ability to alloy with other metals, while actinoids are known for their radioactive properties and are also typically dense metals with varying degrees of chemical reactivity.
So, the correct description of their properties would be:
They are malleable and lustrous, and they tend to be good conductors of both electricity and thermal energy.