Chemistry Unit 1 - The Periodic Table - Atoms - Compounds 0.0 / 5 ? ChemistryAtoms and compoundsAtomsThe Periodic TableGCSEAQA Created by: FallourenCreated on: 06-04-16 10:32 How many groups are in the Periodic Table? The Periodic Table has 8 groups. These are based on elements reacting in similar ways. 1 of 10 What are the [three] sub-atomic particles that make up an atom? Protons (charge +1 mass +1) Electrons (charge -1 mass 0) Neutrons (charge 0 mass +1) 2 of 10 What is the charge of an atom? The charge of an ATOM is neutral (0) -> this means that the number of protons is the same as the number of electrons 3 of 10 How do you find out the mass number? Number of protons + number of neutrons (e.g. carbon (6 + 6 = 12)) 4 of 10 How do you find out the number of neutrons? Mass number - number of protons (e.g. carbon (12 - 6 = 6)) 5 of 10 In the Periodic Table, what does the horizontal row tell you? A horizontal row in the Periodic Table is a period. 6 of 10 In the Periodic Table, what does the vertical column tell you? The vertical column contains elements with similar reactivities. This is a group. 7 of 10 Each shell on an atom can contain up to how many shells? First shell - 2 Second Shell - 8 Third Shell - 18 8 of 10 What is the name for all elements in group 0? The elements in group 0 are all NOBLE GASES - this means they have a stable electron arrangement and have a full outer shell. 9 of 10 Explain the formation of a compound. A compound is formed when two or more different elements combine together. 10 of 10
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