Do now! Have a look through your test!. Moles! Equal masses of different elements will contain different numbers of atoms (as atoms of different elements.
1 The Structure of the Atom. 2 Objectives Compare and contrast the atomic models of Democritus and Dalton Define an atom. Distinguish between the sub.
Lecture 1: Introduction & Methods 1.Introduction 2.Techniques for discovery & study 3.The NASA Kepler mission Planetary Systems Orbiting Diverse Stars.
Matter and Atomic Structure Chap. 3 What are elements? How atoms combine States of matter States of matter.
The Use of Isotope Geochemistry in Forensic Geology Radioactive Isotopes Modified from a PowerPoint presentation prepared by J. Crelling, Southern Illinois.
10.1 C HARACTERISTICS OF G ASES Air behaves physically as one gaseous material N 2 (78%), O 2 (21%) and Ar (0.9%) Only a few elements exist as gases.
