Atomic structure 5.0 / 5 based on 1 rating ? ChemistryAtomic structureYears 7-9 (KS3)None Created by: HBpencil13Created on: 02-06-21 19:18 Define an atom an atom is the smallest unit of an element 1 of 11 Describe protons +1 charge, 1 relative mass, found in the nucleus 2 of 11 Describe electrons -1 charge, 0 relative mass, found in the shells 3 of 11 Describe neutrons 0 charge, 1 relative mass, found in the nucleus 4 of 11 What is the mass number the total number of protons and neutrons in an atom 5 of 11 What is the atomic number the number of protons in the nucleus 6 of 11 What are isotopes isotopes are atoms of the same element which have the same number of protons but a different mass number due to different numbers of neutrons 7 of 11 Define an element substance made from only one type of atom 8 of 11 Define a molecule a group of two or more atoms chemically joined 9 of 11 Define a compound two or more different types of atoms chemically combined 10 of 11 Define a mixture two or more different substances chemically joined 11 of 11
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