1. Atoms, Elements and The Periodic Table

2. ATOMS An ATOM is the smallest piece of matter that cannot be broken down. An ATOM is the smallest piece of matter that cannot be broken down.

3. All types of atoms are found on the PERIODIC TABLE. All types of atoms are found on the PERIODIC TABLE. periodic table periodic table periodic table periodic table These are called elements. These are called elements. These elements combine to make absolutely everything in our world These elements combine to make absolutely everything in our world

4. How the Periodic Table Began… The periodic table was created by a Russian chemist, Dmitri Mendeleev. The periodic table was created by a Russian chemist, Dmitri Mendeleev. 1834-1907

5. Mendeleev looked at the chemical and physical properties of the elements and found that some elements were similar to others Mendeleev looked at the chemical and physical properties of the elements and found that some elements were similar to others He arranged the elements according to how they behaved. He arranged the elements according to how they behaved.

6. The periodic table is divided into three main groups: metals, nonmetals and metalloids (have properties of both metals and nonmetals) The periodic table is divided into three main groups: metals, nonmetals and metalloids (have properties of both metals and nonmetals)

7. Elements and their Symbols A chemical symbol is an abbreviation of the name of the element. A chemical symbol is an abbreviation of the name of the element. It typically consists of the first letter of the elements name. It typically consists of the first letter of the elements name. Examples:oxygen  O carbon  C

8. If another element starts with the same letter, then the 2 nd element will used both its 1 st and another letter. If another element starts with the same letter, then the 2 nd element will used both its 1 st and another letter. Only the FIRST letter is CAPITALISED and there are no spaces between the letters. Only the FIRST letter is CAPITALISED and there are no spaces between the letters. Examples:cobalt  Co chromium  Cr manganese  Mn

9. Some elements symbols come from their Latin name. Some elements symbols come from their Latin name. Examples:Sliver = argentum  Ag Gold = aurum  Au Tin = stannum  Sn

10. The current standard table contains 117 elements as of January 27, 2008 The current standard table contains 117 elements as of January 27, 2008 periodic table song periodic table song PLAY