1. Nature and Composition of Matter
Unit 1 Sec 2.1
Nature and Composition of Matter

2. A. MATTER Matter: anything that occupies space and has mass
Example:
Mass: quantity of matter an object has

3. B. ELEMENTS
Element: pure substance that cannot be broken down chemically into simpler kinds of matter
Example:

5. C. ATOMS
Atom: simplest particle of an element that retains all of the properties of that element
Nucleus contains:
Protons:
Neutrons:
Electrons:
Energy Levels:

7. D. COMPOUNDS
Compound: pure substance made up of atoms of 2 or more elements
Example:
Molecule:

8. E. BONDS
Covalent bonds: 2 atoms share one or more pairs of electrons

10. E. IONIC BONDS
Ion: charged particle
Example:
Ionic Bond: