Chemistry Flash Cards 3.0 / 5 based on 1 rating ? ChemistryIGCSEEdexcel Created by: SebastianCreated on: 16-05-13 21:11 What is diffusion? Diffusion is the movment of particles trough a liquid or gas. 1 of 6 What is the number of electrons equal to? Number of electrons equals to number of protons. 2 of 6 What is an atomic number? The atomic number tells you how many protons there are. 3 of 6 What is the mass number? The number of protons and neutrons. 4 of 6 How many atoms does an element consist of? Elements consist of one type of atoms only. 5 of 6 What is a compound? A compound is a substance which is made oftwo or more different elementswhich are chemically joined. 6 of 6
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