The study of chemistry begins with the basic unit of matter, the atom ? The Greek philosopher Democritus called the smallest fragment of matter the atom, from
The branch of science that studies the preparation, properties, structure and reactions of material substances is called chemistry DEVELOPMENT OF CHEMISTRY
Chemistry is the basis for how the body transforms and uses energy and for how our cells use crucial molecules such as carbohydrates, lipids, proteins, and
Most chemical reactions in basic chemistry classes are thought of as being irreversible • isotonic solutions: Solutions containing the same osmotic pressure •
Starting with atoms it progresses to elements, molecules and compounds It shows how a substance can be simply represented by a chemical formula made up of both
Lesson 4: Basic Chemistry part 1 I Time: 50 minutes II Materials: a Handout: “Basic Chemistry part 1” b Handout: “The Periodic Table of the Elements”
2 basic concepts of chemistry 2 3 Chemical formulas and terms Relationship between configuration of valence electrons and chemical reactivity,
Note that bonds are not rigid structures, but can bend and stretch without breaking, like a spring • There are three basic types of chemical
As you will see later, this is because chemical reactions involve the rearrangement of electrons Nuclei of atoms (protons and neutrons) usually remain
UNIT 1 SOME BASIC CONCEPTS OF CHEMISTRY Chemistry is the science of molecules and their transformations It is the science not so much of the one
The study of chemistry begins with the basic unit of matter, the atom ▫ The Greek philosopher Democritus of an element have the same chemical properties
10th Edition 1 Basic Chemistry Chapter 2: pp 20-36 Chemical Elements ○ Atoms ○ Atomic Mass and Molecules and Compounds ○ Chemical Bonding
SOME BASIC CONCEPTS OF CHEMISTRY Chemistry: Chemistry is the branch of science that deals with the composition, structure and properties of matter