Nucleosynthesis

The video explains the formation of atomic nuclei from neutrons and protons, highlighting nuclear synthesis in the early universe post-Big Bang, which created hydrogen and helium. It further discusses how stars form heavier elements from these two elements. Finally, it describes the role of supernova explosions in creating elements heavier than iron.

What particles are involved in the formation of atomic nuclei?

• Electrons and positrons

• Neutrons, protons, and smaller nuclei

• Photons and neutrinos

• Quarks and leptons

What elements were primarily formed during the first few minutes after the Big Bang?

• Silicon and sulfur

• Hydrogen and helium

• Iron and nickel

• Carbon and oxygen

Where does nuclear synthesis occur to create heavier elements from hydrogen and helium?

• In the ocean

• In black holes

• In stars

• In the Earth's core

What is required to create elements heavier than iron?

• A black hole

• A neutron star

• A supernova explosion

• A white dwarf

Which process is responsible for the formation of elements heavier than iron?

• Radioactive decay

• Nuclear synthesis in supernovae

• Nuclear fusion in stars

• Nuclear fission