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Atomic Structure

Atomic Structure. Max, Justin, Amy. Atom. The word atom comes from the Greek word meaning “incapable of being divided.” The definition of atom is: the smallest part of an element; indivisible by ordinary chemical means. Parts of the Atom. Protons: Have a positive charge. +

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Atomic Structure

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  1. Atomic Structure Max, Justin, Amy

  2. Atom • The word atom comes from the Greek word meaning “incapable of being divided.” • The definition of atom is: the smallest part of an element; indivisible by ordinary chemical means.

  3. Parts of the Atom • Protons: Have a positive charge. + • Neutrons: Uncharged or neutral. +- • Electrons: Have a negative charge. – • Protons and electrons are equal in strength, and must be balanced. • Atoms with same charge repel, with opposite charge attract.

  4. Planetary Model of an Atom • The planetary model of an atom portrays the atom as a miniature solar system in which the protons and neutrons are clustered at the center of the atom in the atomic nucleus.

  5. Orbital Model of an Atom • This modern model of atomic structure, called the orbital model, has proved to be more useful in predicting the chemical behavior of atoms.

  6. Citations • Marieb, Elaine. “Atomic Structure.” Essentials of Human Anatomy & Physiology. SerinaBeauparlant. 8th Edition. San Francisco. Pearson Benjamin Cummings. 2006. 29-30. Print. • “Stock Photography: Orbital model of atom.” Dreamstime. 22 August 2013. Web. http://www.dreamstime.com/stock- photography-orbital-model-atom- image10634382

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