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The Atom

The Atom. Atomic Clock Atom Bomb Atom Ant. What Do You Think?. Draw a diagram of what you think an atom looks like. Are atoms mostly Empty space Stuff Equal parts of each. Challenge Question. Atoms are mostly … ______________________________________. Connection.

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The Atom

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  1. The Atom • Atomic Clock • Atom Bomb • Atom Ant

  2. What Do You Think? • Draw a diagram of what you think an atom looks like. • Are atoms mostly • Empty space • Stuff • Equal parts of each

  3. Challenge Question • Atoms are mostly … ______________________________________

  4. Connection • If an atom had 11 protons, how many electrons does it have? How do you know?

  5. VocabularyDefine in words, diagrams or both • Proton • Neutron • Electron • Nucleus • Electron cloud • Charge • Element • atom Check Quizlet – I have made this set for you.

  6. Resources(places to look for information) • Bill Nye – https://www.youtube.com/watch?v=CnjxrFNie5I • Holt Physical Science Text, pages 288-289 • Sciencesaurus Text, pages 255-257 • Chem4Kids- http://www.chem4kids.com/files/atom_intro.html • The Atom PowerPoint – (see Science Website)

  7. Parts of an AtomNotes

  8. First off, what is an atom? • Atoms are the smallest parts to which an element can be divided yet still be that element. • Atoms are the building blocks of all matter.

  9. Describe an element • A substance made up of only one kind of atom

  10. How small is an atom? • An atom is so small that a penny contains about 2 x 1022 or 20,000,000,000,000,000,000,000 atoms!!!

  11. But there’s more… • Atoms consist of even smaller particles. These include: • Protons • Neutrons • Electrons

  12. The Nucleus • The center of an atom • Small, dense (packed tightly) • Contains protons and neutrons: most of the atom’s mass • So dense, if it were the size of a grape, it would weigh over 9 million tons!

  13. Protons • Located in the nucleus • Positive charge (+) • Mass of 1 atomic mass unit (amu) protons = positive

  14. Neutrons • Located in the nucleus • Have no charge - neutral • Mass of 1 amu neutrons = neutral

  15. Electrons • Found outside of the nucleus in electron clouds • (think of rings around a target) • Negatively charged (-) • Mass of almost zero • Number of electrons equals the numbers of protons to cancel out the charges • (think of -1+1=0) electrons = negative

  16. How Atoms Are Put Together The protons and neutrons make up the center or nucleus.

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