Chemistry 0.0 / 5 ? ChemistryAtomsGCSEAQA Created by: zoeredheadCreated on: 14-12-15 17:01 What is the atomic number? Number of protons in atom. 1 of 23 What is the mass number? Protons+Neutrons in an atom. 2 of 23 What is the group number? Number of electrons in the outer shell. 3 of 23 How are compounds formed? 2 or more elements joining together 4 of 23 How are ionic bonds formed? Positive and Negative attracting. 5 of 23 What is an ion? An atom with a charge due to an atom losing/gaining an electron. 6 of 23 Describe the structure of ionic compounds. Full outer shell. 7 of 23 Which substances are always soluble in water? Sugar, nitrates, sodium or potassium. 8 of 23 Which substances are soluble with some exceptions? Salt and common sulphates. 9 of 23 Which substances are always insoluble? Carbonates and hydroxides. 10 of 23 Which insoluble salt is given as a 'barium meal'? Barium sulphate 11 of 23 Why is barium sulphate useful? Used in X Rays 12 of 23 What colour does the flame turn when SODIUM is present? Yellow/Orange 13 of 23 What colour does the flame turn when POTASSIUM is present? Lilac 14 of 23 What colour does the flame turn when CALCIUM is present? Brick red 15 of 23 What colour does the flame turn when COPPER is present? Blue/Green 16 of 23 Which gas is released when a carbonate is added to an acid? Carbon dioxide 17 of 23 What is spectroscopy? A flame test that looks for the presence of an element in a compound. 18 of 23 What is a covalent bond? Non metal atoms sharing electrons 19 of 23 What is graphite used for? Pencil 20 of 23 What is diamond used for? Jewelry 21 of 23 How are two immiscble liquids separated? Seperating funnel 22 of 23 How are two miscibleliquids separated? Fractional Distillation 23 of 23
Comments
No comments have yet been made