C1: Atmoic Structure and the Periodic Table 0.0 / 5 ? ChemistryAtomsAtoms and compoundsThe Periodic TableWriting balanced equationsGCSEAQA Created by: lucyordCreated on: 04-01-18 14:21 Define a compound A substance that is made up of two or more DIFFERENT elements and chemically combined in fixed positions. 1 of 20 Difference in appearance of iron and sulfur Iron (grey, small, sharp filings), Sulfur (yellow powder) 2 of 20 How could you test to see if a mixture contained iron/a metal? By bringing a magnet over the mixture- The Magnetism Test. 3 of 20 Which metals are magnetic? Iron, nickel, cobalt 4 of 20 What ratio do these reaction in? Ca + O 1:1 (CaO) 5 of 20 What ratio do these react in? Be + F 1:2 6 of 20 What ration do these react in? Li + O 2:1 7 of 20 What ratio do these react in? Na + O 2:1 8 of 20 Balance: Ca + O2 --> 2Ca + O2 --> 2CaO 9 of 20 Balance: Li + O2 --> 4Li + O2 --> 2Li2O 10 of 20 What is the relative mass of an electron? 1/2000 11 of 20 What is the overall charge of an atom? No charge/ neutral charge 12 of 20 Roughly, how does the size of the atom compare to the size of its' nucleus? 20,000 times bigger 13 of 20 The sum of the protons and neutrons in the nucleus is... The mass number 14 of 20 What can you tell from an element by which group it's in? The number of electrons in its' outer shell 15 of 20 What can you tell from an element by which period it's in? The number of electron shells it has 16 of 20 What is the electron configuration of beryllium? 2,2 17 of 20 What is the electron configuration of nitrogen? 2,5 18 of 20 Non-metals like sulfur, phosphorus and nitrogen oxides turn universal indicator what colour? Showing what? Red- showing they form acidic oxides. 19 of 20 Metals like sodium, potassium and calcium oxides turn universal indicator what colour? Showing what? Blue- showing they form basic oxides. 20 of 20
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