The Sun Chapter 28. Basic Properties Composition of sun 0.8% 70% 28% 0.3% 0.2%
Types of nuclear processes Atoms can eject protons or helium nuclei & get lighter. They can swallow a neutron & spit out the proton to get heavier. Whenever.
Astronomy 2. Most of human history, people thought sun burned some type of fuel to make energy Not until the 21 st century did scientists figure out.
Topic 12 Nuclear Chemistry. What is Radioactivity? Isotopes of many atoms are unstable (have extra energy). These are called radioisotopes. Radioisotopes.
Atomic Structure Unit 3 If a nucleus were the size of baseball, a baseball would be the over 3000 miles high. Nucleus- positive center of atom –makes.
