instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
The properties of the alkali metals are similar to each other as expected for elements in the same family.
answer:
The properties of the alkali metals are similar to each other as expected for elements in the same what?


question:
Collision theory states that chemical reactions occur when atoms, ions, or molecules collide.
answer:
What states that chemical reactions occur when atoms, ions, or molecules collide?


question:
Rare earth metals do you call the set of seventeen chemical elements possessing particular importance for a variety of industrial processes, used frequently in modern technology.
answer:

What do you call the set of seventeen chemical elements possessing particular importance for a variety of industrial processes, used frequently in modern technology?