VIEWS: 70 PAGES: 27 POSTED ON: 9/18/2012
The Atoms Family was created by Kathleen Crawford, 1994 Presentation developed by Tracy Trimpe, 2006, http://sciencespot.net/ How big is an Atom? • The average size atom (Al) is about 0.00000003 cm. • It would take a stack of 50,000 aluminum atoms to equal the thickness of a sheet of aluminum foil. • That’s Small!!!! The Language of Chemistry • CHEMICAL ELEMENTS - – pure substances that cannot be decomposed by ordinary means to other substances. Aluminum Bromine Sodium The Language of Chemistry • The elements, their names, and symbols are given on the PERIODIC TABLE • How many elements are there? The Periodic Table Dmitri Mendeleev (1834 - 1907) What’s Inside an Atom? • An atom is made up of a team of three players: protons, neutrons, and electrons • They each have a charge, mass, and a location The Atom An atom consists of a • nucleus – (of protons and neutrons) • electrons in space about the nucleus. Electron cloud Nucleus The Atoms Family Story In the center of Matterville, there is a place called the Nucleus Arcade, Name: where two members of the Atoms Patty Proton Family like to hang out. Perky Description: Patty Proton, like her sisters, is Positive quite large with a huge smile and Favorite Activity: eyes that sparkle (+). Patty is always Hanging out at the Nucleus Arcade happy and has a very positive personality. Nerdy Nelda Neutron Name: is large like Patty, but she has a Nelda Neutron boring, flat mouth and eyes with zero expression (o). Her family is very Description: apathetic and neutral about Neutral everything. Patty, Nelda, and their Favorite Activity: sisters spend all their time at the Hanging out at the Nucleus Arcade arcade. Around the Nucleus Arcade, you will find a series of roadways that are used Name: by another member of the Atoms Family, Elliott Electron Enraged Elliott Electron. Elliott races Description: madly around the Arcade on his bright Negative red chrome-plated Harley-Davidson. He Favorite Activity: rides so fast that no one can be sure Racing around the arcade where he is at any time. Elliott is much smaller than Patty and Nelda and he is always angry because these bigger relatives will not let him in the Arcade. He has a frown on his face, eyes that are squinted with anger, and a very negative (-) attitude. The first energy street can only hold only two Electron brothers. The second energy street, called the Energy Freeway, can hold 8 brothers. The third energy street, called the Energy Superhighway, can hold 18 of the brothers. Energy Superhighway Can hold 18 electrons Energy Freeway Can hold 8 electrons Nucleus Arcade Energy Street Contains protons & neutrons Can hold 2 electrons The morale of Matterville is stable as long as each negative Electron brother is balanced out by one positive Proton sister. The number of residents in Matterville depends on the Proton and Neutron families. Challenge: What would happen to the morale of Matterville if one Elliott Electron was kidnapped? Challenge 2: What would happen to the morale of Matterville if one Elliott Electron moved to Matterville? Protons... • Charge: positive • Mass: 1 amu (atomic mass unit) • Location: Nucleus Neutrons... • Charge: none • Mass: 1 amu (atomic mass unit) • Location: Nucleus Electrons... • Charge: negative • Mass: almost zero • Location: electron clouds • An _____ is the smallest particle of an element that has the chemical properties of the element. Copper atoms on silica surface. Distance across = 1.8 nanometer (1.8 x 10-9 m) 1st Verse: 3rd Verse: They’re tiny and they’re teeny, Neutrons can be found, Much smaller than a beany, Where protons hang around; They never can be seeny, Electrons they surround The Atoms Family. The Atoms Family. Chorus Chorus 2nd Verse: Chorus: Together they make gases, They are so small. And liquids like molasses, (Snap, snap) And all the solid masses, They’re round like a ball. The Atoms Family (Snap, snap) Chorus They make up the air. They’re everywhere. Can’t see them at all. (Snap, snap) They’re tiny and they’re teeny, Much smaller than a beany, They never can be seeny, The Atoms Family. They are so small. (Snap, snap) They’re round like a ball. (Snap, snap) They make up the air. They’re everywhere. Can’t see them at all. (Snap, snap) Together they make gases, And liquids like molasses, And all the solid masses, The Atoms Family They are so small. (Snap, snap) They’re round like a ball. (Snap, snap) They make up the air. They’re everywhere. Can’t see them at all. (Snap, snap) Neutrons can be found, Where protons hang around; Electrons they surround The Atoms Family. They are so small. (Snap, snap) They’re round like a ball. (Snap, snap) They make up the air. They’re everywhere. Can’t see them at all. (Snap, snap) Ready to try it again? Click the music note to try the song again. If you do not want to sing it again, click the arrow to move to the next slide. The Atoms Family - Atomic Math Challenge Atomic Number Symbol Name Atomic Mass protons electrons Atomic number equals the number of ____________ or ________________. protons neutrons Atomic mass equals the number of ______________ + _______________. Assignment: Finish the rest of the worksheet and turn it in to your teacher.
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