Answer:
Radiation therapy is the use of high energy radiation to kill cancer cells.
Atomic mass :
29.5 * 203 + 70.5 * 205 / 100 =
5988.5 + 14452.5 / 100 =
20441 / 100 = 204.41 u
atomic mass of Thallium <span>204.41 u
</span>
hope this helps!
I believe its the first one because manganese is mn and IV is 4 but the cross thing thing will making it the second one but then you have to simplify making it the first one i hope that helps:)
False. gases have to greatest freedom of motion
