Answer:
nitrogen
Explanation:
as the group number increases, the atomic radius decreases
B. i took the test and got it right
An organism that does not move on its own and makes food from its environment is a producer.
Answer:
Radioactive dating is a method of dating rocks and minerals using radioactive isotopes. This method is useful for igneous and metamorphic rocks, which cannot be dated by the stratigraphic correlation method used for sedimentary rocks. Over 300 naturally-occurring isotopes are known.