Exploring the Formation of Elements During Stellar Formation and Evolution

Scientists believe that the formation of the universe began

through the explosion of a ______

primordial atom

When did the primordial atom happened?

13 billion years ago

What was the explosion called?

Big bang

_______ combined together and formed light elements.

Protons and neutrons

________ in the process of Big Bang Nucleosynthesis

Hydrogen and helium

is an isotope of hydrogen, it has a one proton and one neutron.

Deuteron

It is a process where heavier elements such as Berrylium and Iron were formed by combining the protons and neutrons of light elements.

Stellar nucleosynthesis

happens when atoms gain enough energy to combine when they collied, this process release huge amount of energy.

Nuclear fusion

massive stars undergo _______ (explosion of that star)

Supernova

fusion of four hydrogen nuclei to form a helium nucleus. Happen in main-sequence

star

Proton-proton chain/Hydrogen burning

Conversion of hydrogen to helium among massive stars by using carbon as catalyst.

CNO cycle

Helium is burned to produce Carbon through the process called ________

Tri-alpha process

Alpha particle is equivalent of ______

Helium atom

a nuclear fusion sequence inside massive stars that adds helium nuclei to build heavier element

Alpha ladder particle

A neutron is added to a seed nucleus

Neutron capture

happens when there is a slow rate of capturing neutron while there is a faster rate of radioactive decay hence increasing the proton by 1.

Slow process

means that there is faster rate of capturing neutron before it undergoes radioactive decay thus, more neutrons can be combined at the nucleus.

Rapid process