It will be the second one
Answer:
b. The shorter the half-life, the more dangerous the radioisotope.
In eukaryotic cells the citric acid cycle takes place in the matrix of the mitochondria.
In order to get HgO you would need 2Hg+1O2=2HgO. Since oxygen is diatomic you need two when it stands alone causing you to need two mercuries to balance out the reactants and the product I hope this helps
The answer choice is going to be B.