Catalyst – February 3(10)-7, 2010 Please place Progress Report Reflection Homework on your desk. What is a valence electron? What are the 3 subatomic.
Basic Concept in Radiologic Physics. IONIZATION PROCESS REMOVAL OF AN ELECTRON FROM AN ATOM.
Chapter 18 Nuclear Reactions. Chemical Reactions Occur in the outer electron energy level Valance electrons.
Chemistry Unit Review Game. Chapter 1 Anything that has mass and volume is considered to be??? Anything that has mass and volume is considered to be???
MIDTERM INFO The Midterm is comprehensive –County Assessment (1 st & 2 nd Quarter) 50 MC Questions & 1 BCR –Teacher-Designed Exam (1 st & 2 nd Quarter)
1 Nuclear Chemistry 2 The stability of the atom The vast majority of all atoms are incredibly stable and their nucleus never changes. However, a small.
Nuclear Chemistry Unstable Nuclei and Radioactive Decay.
1 Geiger-Mueller Tube Introduced in 1928 by Geiger and Mueller but still find application today Used in experiments that identified the He nucleus as.
Learning Outcomes Historical outline of radioactivity: work of Becquerel (discovery of radiation from uranium salts); Marie and Pierre Curie (discovery.
Nuclear Chemistry Review 1. An unstable nucleus ____. a. increases its nuclear mass by fission b.increases its half-life c.emits energy when it decays.