Which statements best describe the work of marie and pierre curie? check all that apply. they discovered radioactivity. they came up with the term “radioactivity.” they conducted experiments with uranium-containing minerals and pure uranium. they conducted experiments with uranium-containing minerals and photographic plates. they discovered two new radioactive elements.

They came up with the term “radioactivity.”

They conducted experiments with uranium-containing minerals and pure uranium.

They discovered two new radioactive elements.

Explanation:

As we know that the radioactivity is discovered by Marie and Curie and as per the experimental verification of the theory given by them we can say that rate of decay of a radioactive sample is directly proportional to the number of the radioactive same present at that time.

So it is given as

so here they also discovered two new radioactive substance apart from all the experiments related to the Uranium

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it