'Electrons arranged' diaporamas de présentation

The elements + the periodic table

The elements + the periodic table. The element; a special substance which contains one sort of atom. It cannot be broken down or changed by any chemical reaction. The First Twenty Elements. 1. 2. 4. 6. 3. 5. 7. 0. www.eastmarinedrive.com.

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Lesson 1 The structure of the atom

Lesson 1 The structure of the atom. What is an atom and how big is an atom?.

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Atoms and Elements

Atoms and Elements. Subatomic Particles. Atom - Smallest particle of an element. Subatomic Particles - Atoms are composed of protons, neutrons, and electrons. Nucleus - Small dense positively charged center of an atom .

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Bohr Model of the Atom

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