Where Do Chemical Elements Come From? page 2

What is the primary nuclear reaction in stars less massive than the sun?

In stars more massive than eight solar masses, up to which element can the chain reaction produce?

A star is a balancing act between gravity and (a)   from nuclear reactions.

What happens when the core of a very massive star becomes pure iron nuclei?

The 's' process in stars involves the capture of (a)   to form new nuclei.

Newly formed nuclei can be different versions of a given element called (a)  

An isotope are different versions of the same element with the same number of protons but have differentnumbers of (a)   .

Nickel-64 and Nickel-65 are similar because they both contain 28 protons but

Nickel-65 is radioactive and transforms into Copper-65 when a neutron of Nickel-65 transforms into a proton and an electron. This process is called

New elements are created during the explosion of a star. The nuclei of various elements captures neutrons that are released in the explosion. These elements then become the nuclei of the next element because a neutron will transform into a (a)   and an electron.