Labels:bannister | book | earth | hakham | sky | workwear OCR: WHAT Is AN ATOM? LI SUBSTANCES are made Atom particles u1n oftiny particles called Protons contain post itive atoms; they are the building blocks electrical charges, electrons on Earth. Atoms are contain negative ones, aa small that pinhead conte ains bave no charge about 60 billion of them. The ancient Greeks first guessed Neutrons that matter might be made un of small particles. Atoms Protons contain even smaller particles called protons, neutrons and electrons NUCLEUS THE STRUCTURE C OF AN ATOM Electrons Electrons travel around the nucleus (center) of the atom, which contains protons and neutrons INSIDE THE EXPLORING ALSO ATaM THE ATcM positive ofeverything Fiectrons
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