White dwarf phase of star will be created after the end of red giant?

Nebula is formed from gas and dust particles which are pulled together by gravity and no nuclear fusion has happened yet?

Nuclear fusion the energy of star produced?

Big bang nucleosynthesis process where elements heavier than Iron are formed.

Neutron capture is addition of neutron to form heavier nuclei

Red Giant is known as the biggest stars in the universe

S-process faster rate of capturing neutron before it undergoes radioactive decay

Supernova Nucleosynthes is  a process by which elements are created within the star

Hydrogen and Carbon following gases are major components of star?

A star become unstable when its core is converted to Iron