Chemistry - Fundamental Ideas key terms and ideas you need to remember when revising for your chemistry exam. 2.0 / 5 based on 1 rating ? ChemistryAtoms and compoundsGCSEAQA Created by: Mia HighamCreated on: 23-04-13 17:01 The atoms in an element are? All the same type. 1 of 21 An atom consists of? A nucleus, surrounded by electrons. 2 of 21 What is the correct chemical symbol for Sodium? Na 3 of 21 Chemical symbols should always be wrote as? A uppercase letter followed by a lowercase letter. 4 of 21 What are the groups in the periodic table? The columns of similar elements. 5 of 21 What are the periods in the periodic table? The horizontal rows in the table. 6 of 21 How many protons, neutrons and electrons are there in an atom with a mass number of 27 and an atomic number of 13? 13 protons, 14 neutrons and 13 electrons. 7 of 21 Does a nucleus contain: protons, neutrons, electrons, a combination or all? Protons and neutrons. 8 of 21 The number of protons is always equal to the number of electrons, true or false? True. 9 of 21 What is the atomic structure of an element with 17 electrons. 2,8,7 10 of 21 What is the charge of a proton? +1 11 of 21 What is the charge of a neutron? 0, because neutrons are neutral 12 of 21 What is the charge of an electron? -1 13 of 21 What is an element? An element is a substance that is made up of only one type of atom. 14 of 21 What is the atomic number of an atom? The number of protons it contains. 15 of 21 What is the mass number of an atom? The number of protons and neutrons it contains. 16 of 21 Is the mass number USUALLY at the top or the bottom of the chemical symbol? Top. 17 of 21 What would the atomic structure of an element with three full shells be? 2,8,8 18 of 21 What does the period tell you about an elements atomic structure? How many shells it has. 19 of 21 What does the group tell you about the elements atomic structure? the group number is the number of electrons in its outer shell. 20 of 21 How many electrons would there be in the outer shell of a group 0 element? 8. 21 of 21
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