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How many protons, electrons and neutrons are in: He Na Li Cu Zn Bronze: Complete 3 Questions Silver: Complete all questions Gold: Silver and why are the electrons and proton numbers the same?
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Electrons in shells What are the rules for putting electrons in shells? Draw atoms of Lithium and Nitrogen Draw atoms of Sodium and Chlorine. Extension – write the electronic configurations for each atom you have drawn. What group is this element in?
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Compounds are made by 2 or more atoms joining together and forming a bond. Why do atoms bond? What makes an atom stable? The two types of bonding are: I_____ Bonding 2.C_______ Bonding Na http://www.youtube.com/watch?v=yjge1WdCFPs&feature=related
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Equations B: Complete the word equations S: Identify the numbers of atoms in the symbol equations. G: Balance the symbol equations. 1. Potassium + __________ Potassium Oxide K + O 2 K 2 O 2. Zinc + H_________ A___ Z___ Chloride + H______ Zn HCl ZnCl 2 + H 2
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Chemical name and symbol LIMESTONE Name of the reaction with heat and the word equation for it. 3 uses of limestone 1. 2. 3. 2 Advantages of quarrying 2 Disadvantages of quarrying How cement and concrete are made Where does Acid rain come from and how does it affect Limestone?
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Limestone Cycle CO 2 H 2 O Ca(OH) 2 Lime water
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How did you do? Set yourself a target for your revision T