EL 1 Where do the chemical elements come from? 0.0 / 5 ? ChemistryElements of LifeASOCR Created by: LBCW0502Created on: 18-12-15 14:40 Name the three sub-atomic particles in an atom Protons, neutrons and electrons 1 of 8 What are isotopes? Atoms of a particular element that have the same number of protons and electrons but different numbers of neutrons 2 of 8 What does mass spectrometry measure? The atomic or molecular mass of different particles in a sample and the relative abundance of different isotopes in an element 3 of 8 State the stages of mass spectrometry in the correct order Ionisation, acceleration, deflection and detection 4 of 8 What does the height of the peak on a mass spectrometry graph show? The relative abundance of each ion 5 of 8 How do you calculate the relative atomic mass using isotopes of a particular element? Relative isotopic mass x relative abundance / 100 6 of 8 What is nuclear fusion? Two lighter nuclei fuse together forming a single heavier nucleus of a new element (e.g. 2 hydrogen nuclei fuse to form a helium nucleus) 7 of 8 What does the gamma symbol indicate in a nuclear equation? The release of energy when the fusion reaction occurs 8 of 8
AS Chemistry Unit 1 Module 1 (Atoms and Reactions) incomplete up to titrations 4.5 / 5 based on 2 ratings
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