Which statement describes the properties of lanthanoids and actinoids?(1 point)

Responses

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.

They are malleable and lustrous, and they tend to conduct both electricity and thermal energy.
They are malleable and lustrous, and they tend to conduct both electricity and thermal energy.

They are malleable and lustrous, and they tend to be poor conductors of both electricity and thermal energy.

1 answer

The correct statement that describes the properties of lanthanoids and actinoids is:

They are brittle and dull, and they tend to conduct both electricity and thermal energy.

Lanthanoids and actinoids are typically seen as brittle metals, and while they may have dull appearances, they can conduct electricity and thermal energy to some extent, especially when compared to nonmetals.