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

Responses

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 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 malleable and lustrous, and they tend

1 answer

The correct description of 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 typically exhibit brittleness and dull appearances, but they can conduct electricity and thermal energy reasonably well compared to other types of metals.