Thallium has got 81 protons
<u>Have a nice days.......</u>
Answer:
4.419 g
Explanation:
55 years is 5.5 half lives
200 g * (1/2)^5.5 = 4.419 g
It is to create energy that the cell can use. it takes in oxygen to break down food molecules to get cellular energy for cell function
