Atoms and Elements 0.0 / 5 ? AllAtoms and ElementsAll LevelsAll boards Created by: DirectionerCreated on: 31-07-13 19:10 What are materials made from? Very small particles called atoms 1 of 10 What is an element? A material that contains only one type of atom 2 of 10 About how many elements are there? About 100, they are displayed on the Periodic Table 3 of 10 What is a mixture of metals called? Alloys 4 of 10 What are the three types of particles atoms are made of? Protons, neutrons and electrons 5 of 10 Which of the three particles are found in the nucleus of an atom? Protons and neutrons 6 of 10 What is the atomic number? The number of protons in an atom 7 of 10 What is a compound? A compound is a substance formed when the atoms of two or more different elements are joined together by a chemical reaction 8 of 10 What properties does a compound have? Very different properties from the elements it was made from 9 of 10 What is a molecule? A molecule is formed when a small group of atoms are joined together. The atoms can be the same (e.g hydogen) or different (e.g carbon dioxide) 10 of 10
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