Answer: helium is not a metal nor a non metal it's a noble gas
Explanation:
The correct answer should be A
Answer: Nothing
Explanation:
Cobalt-60 emits γ radiation and is used in many applications including cancer treatment: There is no change in mass number or atomic number during the emission of a γ ray unless the γ emission accompanies one of the other modes of decay.
You need to create as much possible lifting force to an airplane as you can. In order to do this, you need large gusts/ streams of air and room under the airplane for flight. ;)
Http://www.geologyin.com/2014/11/how-to-identify-minerals-in-10-steps.html
