Which statement describes the properties of lanthanoids and actinoids?(1 point)ResponsesThey 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 to conduct both electricity and thermal energy.They are malleable and lustrous, 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.

1 answer

The correct statement that describes the properties of lanthanoids (lanthanides) and actinoids (actinides) is:

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

Lanthanoids and actinoids are typically characterized by being brittle, and while some of them may not have a shiny appearance (dull), they generally can conduct electricity and heat to some extent.