Summarize the history of radioactivity by choosing the scientist(s) involved with each discovery. conducted experiments with uranium-containing minerals and pure uranium. came up with the term “radioactivity.” showed that uranium in a mineral gave off radiation even without being exposed to the sun. discovered radium and polonium. conducted experiments with fluorescent minerals and photographic plates.

Marie and Pierre Curie - conducted experiments with uranium-containing minerals and pure uranium.

Marie and Pierre Curie - came up with the term “radioactivity.”

Antoine Henri Becquerel- showed that uranium in a mineral gave off radiation even without being exposed to the Sun.

Marie and Pierre Curie - discovered radium and polonium.

Antoine Henri Becquerel- conducted experiments with fluorescent minerals and photographic plates.

✔ Marie and Pierre Curie

✔ Marie and Pierre Curie

✔ Antoine Henri Becquerel

✔ Marie and Pierre Curie

✔ Antoine Henri Becquerel

muscle endurance

explanation:

i can do 50 in a row ( but i get so tired after that)

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length