dadrfc
2 Answers
leeroy
Polonium is a chemical element with the symbol Po and atomic number 84, discovered in 1898 by Marie Sk?odowska-Curie and Pierre Curie. A rare and highly radioactive ...
Like veteran said check out the google, If you have a question about it you may want to reword your question.
You can go back into the question through the edit option, good luck with your homework.
| 7 years ago. Rating: 0 | |
veteran01
