1. Formation of the Elements 2. Composition of Earth 3. Chemical Equilibrium Exists when a system is in a state of minimum energy (G)- Often not completely attained in nature…

1. THE HISTORICAL DEVELOPMENT of ATOMS 2. Early Greek Theories 400 B.C. - Democritus thought matter could not be divided indefinitely. 350 B.C - Aristotle modified an earlier…

Slide 1 Slide 2 Models of the Atom a Historical Perspective Slide 3 Aristotle Early Greek Theories 400 B.C. - Democritus thought matter could not be divided indefinitely.…

1.A t o m i cS t r u c t u r e Part 22.   3. Recap 4. Recap Atom is a particle which is electrically neutral No. of protons = No. of electrons An atom consists of 3 subatomic…

1. A t o m i cS t r u c t u r e Part 2 2.   3. Recap 4. Recap Atom is a particle which is electrically neutral No. of protons = No. of electrons An atom consists of 3 subatomic…

1. Learning Outcomes of the lesson: • define isotopes • state the two types of isotopes as being radioactive and non-radioactive • state…

Slide 1Themes: Stability and Change Conservation of Energy and Matter Slide 2  What types of isotopes are unstable?  Unstable isotopes have larger differences between…

Slide 1 Nuclear Physics Slide 2 Six Differences Between Nuclear Reactions and Chemical Reactions Protons and neutrons react inside the nucleus Elements transmute into other…

7.2-Half-Life 7.3- Nuclear Rx Hulk smash! GRR! Iâm going to teach you about half-life and nuclear Rx! What is a half-life? The rate of radioactive decay can be compared…

MATTER MATTER 1.1 ATOMS AND MOLECULES CONTENTS Define relative atomic mass and relative molecular mass based on the C-12 scale Analyze mass spectra in terms of isotopic abundances…