Which of the following processes involve radioactivity? in medicine oxidation-reduction reactions carbon-14 dating gas grills (can have more then one answer)

in medicine

carbon-14 dating

Explanation:

Radioactivity is involved in medicine and C-14 dating.  C-14 dating is used to determine the age of fossils. In medicine a frequently used radioisotope is iodine-131 that is used in the diagnosis of thyroid cancer, to locate tumors of the liver and brain. It is frequently employed to monitor the functioning of the thyroid gland.

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

that tool would be a compass