Chemistry - Atomic structure, analysis and quantitive chemistry 0.0 / 5 ? ChemistryAtomsGCSEAQA Created by: baggiez_boiCreated on: 27-04-14 18:56 What is the mass number of an atom? The total number of protons and neutrons. 1 of 6 What are isotopes? Atoms of the same element with differnent numbers of neutrons. 2 of 6 What is the atomic number? The number of protons and electrons an atom contains. 3 of 6 In a chemical symbol, where is the atomic number and where is the mass number? The atomic number is at the bottom and the mass number is at the top. 4 of 6 How do you find the relative formula mass? Add together the value of the relative atomic mass for all atoms in it's formula. 5 of 6 What is the relative formula mass of a substance shown in grams called? A mole. 6 of 6
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