A SIMPLE VIEW OF ATOMIC STRUCTURE This page revises the simple ideas about atomic structure that you will have come across in an introductory chemistry course (for example,…

Slide 11 Atoms and Elements Chapter 2 Slide 2 2 Atomic theory John Dalton, 1808: matter is made of tiny indestructible particles called atoms What evidence persuaded John…

Slide 1 Slide 2 1. The ancient Greek philosopher Democritus coined what word for a tiny piece of matter that cannot be divided? a) Element b) Electron c) Atom d) Molecule…

Slide 1Chapter 6-2 part 1 The Atom Slide 2 The Parts of an Atom Almost all atoms are made of the same three parts. These particles are protons, neutrons, and electrons. Slide…

Slide 1 Slide 2  Calculate the number of protons, neutrons, and electrons in an atom given its mass number and atomic number.  Define an isotope and explain why atomic…

IGN SUDARYADI, M.Kes. Rad-Biologi UGM Chemical versus Nuclear Reactions: 1. 2Na+ + H2O ----> 2NaOH + 2H+ 3-5 eV in this reaction 2. 42He + 94Be ----> 126C + 10n 10…

Einstein: Relativity theory (1905), quantum theory Roentgen (1895) discovered x-rays Becquerel: (1896) first recognition of radioactivity Rutherford: (1902) transmutations…

Slide 1 Slide 2 3-3: Counting Atoms Slide 3 Beaker Breaker 1.What was the name of Rutherford’s experiment? 2.What did Rutherford’s experiment discover? 3.My atomic number…

Slide 1 Slide 2 Chapter 4 Atomic Theory Slide 3 Matter Matter All matter is made of atoms o Alone as elements Au, Na, O, He o In combination of elements as compounds H 2…

Slide 1 Chemistry At the bottom, biology is nothing but applied chemistry All matter is composed of atoms Elements such as carbon and oxygen are a group of atoms of the same…