1. Starter: Complete the STARTER SECTION on your worksheet!! Title: Elements and Compounds Date: Friday 28 th November 2014 Underline with a ruler

2. Learning Objectives Thursday 27 th November 2014 Define an atom, an element and a compound Describe what makes each element different Identify atoms present in compounds using the periodic table Draw the structure of a number of atoms Define an atom, an element and a compound Describe what makes each element different Identify atoms present in compounds using the periodic table Draw the structure of a number of atoms

3. L.O. Define an atom, an element and a compound Element Atom The smallest particle of an element that can exist A substance made up of only 1 kind of atom Compound A substance made up of 2 or more different atoms chemically joined together

4. How do you know which element is which? L.O. Describe what makes each element different O 16 8 The smallest number tells you how many protons there are in an element. The number of PROTONS determines which element it is!!

5. Task 2 Tell me the elements – Use the symbols to discover the sentence… L.O. Describe what makes each element different 21 53 7 58 53 16 27 8 3 8 Scandium Iodine Nitrogen Cerium Iodine Sulfur Cobalt Oxygen Lithium Oxygen Sc I N Ce I S Co O Li O

6. Task 3 When we write compound as symbols there are 2 rules: If there are no numbers then there is 1 of that element If there are little numbers then there are that many atoms of that element L.O. Identify atoms present in compounds using the periodic table NaO 2

7. Last Task!! L.O. Draw the structure of a number of atoms Structure of an atom. PROTONS AND NEUTRONS GO IN THE NUCLEUS!! Electrons go on the outside! How do you know how many? The little number tells you the number of PROTONS and ELECTRONS Take the little number away from the big number tells you the NEUTRONS