Answer:
The correct option is B. an alpha particle.
Explanation:
When ²³Na is bombarded with protons 
, ²⁰Ne and one alpha particle 
is released.
The reaction is as follows:
Therefore, an alpha particle and ²⁰Ne are released when ²³Na is bombarded with protons.
Answer:
in pretty sure the last one
The big bang theory refers to a theoretical concept that explains the creation of our universe. It postulates that the universe started with a giant explosion that created all matter and propelled it outwards in all directions. It is the existence of cosmic background radiation that supports the big bang theory within cosmology.
I'm not sure what the alien Theory says or if there really is such a theory. If the theory says that aliens definitely exist and that they have visited Earth in the past then the theory is totally and completely without any kind of support. It's not scientific in any way because there is no evidence for such a claim. It may be thought to be probable but no solid evidence has ever been presented.
