Chapter 4 Atomic Structure. Defining the Atom Early Models of the Atom Democritus – Greek philosopher suggested the existence of the atom around 400 BC.
A. Atomic Mass The average atomic mass is the number at the bottom of each square The average atomic mass is the number at the bottom of each square Found.
1 2 3 Energy in the form of particles or electromagnetic waves emitted from the nuclei of unstable atoms RADIATION 4.
CHM 103 Lecture 5 S07.ppt
CH. 4 Atomic Structure. Atoms *Static electricity demonstration (pg. 96 OB)* Atom = the smallest particle of an element that retains its identity in a.
1 Announcements & Agenda (01/19/07) You should currently be reading Ch 3 & starting Ch 4, which will be relevant to lab next week Today: More on Subatomic.
L 37 Modern Physics [3] [L37] Nuclear physics –what’s inside the nucleus and what holds it together –what is radioactivity –carbon dating [L38] Nuclear.
29:006 FINAL EXAM FRIDAY MAY 11 3:00 – 5:00 PM IN LR1 VAN.
Chapter 2: The Chemical Basis of Life 1AP1: Ch. 2: Chemical Basis of Life To understand A&P it is essential to have a basic knowledge of chemistry…Why??
Chapter 2 Atoms and Molecules: The Chemical Basis of Life.