HYDROGEN BURNING (PROTON PROTON FUSION)

\fDirections: Revisit the lesson we had during week 1. Trace the nuclear reactions happening in an average star during proton-proton chain reaction by completing the following nuclear equations. QO OO H . 'H 2 O + Y HUH - + Y O O O Papion 7 Gamma Ray V Mum He + He1. What are the products formed and emitted when two protons fuse? 2. What will be formed when a protium and a deuterium fuse together? 3. Which isotope of helium is the final product of proton-proton chain reaction? Directions: Complete the table provided below. Answer the questions that follow. Element Atomic Mass Element Atomic Mass isotope Number Number Isolopa Number Number Hydrogen-1 1 1 Carbon-12 12 Hydrogen-2 Carbon-13 6 13 Hydrogen-3 Carbon-14 6 Helium-3 Uranium-235 235 Helium-4 Uranium-238 Guide Questions: 1. Define isotopes in terms of atomic number and mass number. 2. Why is proton-proton chain reaction important in stellar formation and evolution