C1 1.1 and C1 1.2 Flash Cards 5.0 / 5 based on 1 rating ? ChemistryAtomsGCSEAQA Created by: Val AtangaCreated on: 01-04-14 16:10 Why do atoms have a neutral charge? Because the positive charge on the protons and the negative charge on the electrons cancel each other out 1 of 20 Name the two sub-atomic particles in the nucleus of an atom Protons and Neutrons 2 of 20 Why does aluminium react with iron oxide? Because aluminium is higher up in the reactivity series 3 of 20 Why do all atoms in the same group have similar chemical properties? Because they all have the same number of electrons in their outer shell. 4 of 20 Why are all group 0 atoms unreactive? Because they all have a full outer shell 5 of 20 How many electrons can you fit on each shell around the nucleus of an atom? 2 electrons on the first (inner shell), then 8 on the second and third shell 6 of 20 How do you work out the mass of an atom? Mass number= Number of protons + Number of neutrons 7 of 20 What types of substances are made up of atoms? All substances are made up of atoms 8 of 20 How many types of atoms do elements contain? Elements contain only one type of atom 9 of 20 What does an atom consist of? An atom has a nucleus of protons and neutrons, surrounded by electrons 10 of 20 How do you work out the number of neutrons in an atom? Number of Neutrons= Mass number - atomic number 11 of 20 How do you find the atomic number? Atomic number= Number of protons/electrons (as they are equal) 12 of 20 How are elements arranged in the periodic table? In the order of their atomic number 13 of 20 What is a compound? A mixture of different types of atoms joined together 14 of 20 When elements are arranged in columns in the periodic table, what are these columns called? The columns in the periodic table are known as the 'groups' 15 of 20 What type of electrical charge do Neutrons have? Neutrons have no electrical charge. They are neutral 16 of 20 What holds the atoms tightly together in compounds? Chemical bonds 17 of 20 What is an example of a compound that has just 2 different types of atoms? Water, H20 18 of 20 What are the relative charges on the sub-atomic particles of an atom? Electron- Negative, Proton- Positive, Neutron- Neutral 19 of 20 How do you find the number of protons or electrons? They will always give you one or the other, and Protons= Electrons 20 of 20
The nature of substances and chemical reactions - chemical eqautions and chemical calculations 0.0 / 5
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