Chemistry Atomic Structure and Periodic Table 4.5 / 5 based on 2 ratings ? ChemistryAtomsGCSEAQA Created by: ZGrimwoodCreated on: 30-11-19 17:32 What is an Atom? A particle that contains Protons, Neutrons and Electrons. They also have a Nucleus 1 of 37 What is the Nucleus? Located in the middle of the atom. It contains protons and neutron. It has a positive charge because of protons 2 of 37 What are Electrons? They move around the nucleus in electron shells. Negatively charged and tiny but cover alot of space. No mass 3 of 37 What is the Relative Mass of the Proton? 1 4 of 37 What is the Charge of the Proton? Plus 1 5 of 37 What is the Relative Mass of the Neutron? 1 6 of 37 What is the Charge of a Neutron? 0 7 of 37 What is the Relative Mass of an Electron? Very Small 8 of 37 What is the Charge of an Electron? -1 9 of 37 What is the Mass Number? Top Number 10 of 37 What is the Atomic Number? Bottom Number 11 of 37 What is an Element? A substance made up of atoms that all have the same number of protons in their nucleus 12 of 37 What are Isotopes? Different forms of the same element, which have the same number of protons but a different number of neutrons 13 of 37 What is an example of a pair of Isotopes? Carbon-12 and Carbon-13 14 of 37 What is the Formula to work out the Relative Atomic Mass? Sum of Isotope Abundance x Isotope Mass Number / Sum of Abundances of all the Isotopes 15 of 37 What are Compounds? Substances formed from two or more elements 16 of 37 What is Ionic Bonding? When the opposite charges are strongly attracted to each other 17 of 37 What is Covalent Bonding? A chemical bond that involves the sharing of electron pairs between atoms 18 of 37 How can Mixtures be seperated? Physical Methods such as Filtration, Crystallisation, Simple Distillation, Fractional Distillation and Chromotography 19 of 37 What does Filtration seperate? Insoluble Solids from Liquids 20 of 37 What does Evaporation and Crystillation seperate? Soluble Solids from Solutions 21 of 37 What does Filtration and Crystillisation seperate? Rock Salt 22 of 37 What does Simple Distillation seperate? Solutions 23 of 37 What does Fractional Distillation seperate? Mixture of Liquids 24 of 37 How are Elements catagorised? Physical and Chemical Properties, Relative Atomic Mass 25 of 37 Where are Metals found on the Periodic Table? Left side 26 of 37 Where are Non-Metals found on the Periodic Table? Right side 27 of 37 What does the Group Numer show you? How many electrons there are in the Outer shell 28 of 37 What are Metals? Elements which can form positive ions when they react 29 of 37 What are Group 1 Elements known as? Alkali Metals 30 of 37 What are the Properties of Alkali Metals? Soft and Low Density 31 of 37 Finish the sentence: The more reactive an alakli is... The more voilent the reaction is 32 of 37 What happens when Lithium reacts with Oxygen? Forms Lithium Oxide 33 of 37 What happens when Sodium reacts with Oxygen? Forms a mixture of Sodium Oxide and Sodium Peroxide 34 of 37 What happens when Potassium reacts with Oxygen? Potassium Peroxide and Potassium Superoxide 35 of 37 What is Group 7 Elements known as? Halogens 36 of 37 What are Group 0 Elements known as? Noble Gases 37 of 37
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