Power Notes Atomic Structure - Day 1


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Power Notes Atomic Structure - Day 1

  1. 1. You Will Need: 1) Pencil, Colored Pencils 2) Log #3 – Update on-line 3) Power Notes – Atomic Structure – Book shelf 3 pages 6 sidesPlease Staple. 4) Oral Presenters – Log-in
  2. 2. Class Notes Power Notes – Topic: ________________________ Atomic Name ________________________________________ Class ________________________________________ Period ________________________________________ Date _____________________________________ Notes: Structure Questions/Main Ideas: 1. All Matter 2. What are Atoms? • Is made up of tiny particles called atoms. • Smallest particle into which an element can be divided and still keep its properties. • EX: one atom of gold still has all the properties of gold….but if you split the atom it is no longer gold.
  3. 3. 3. How do we know what we know about atoms? • Most of what we know was discovered throughout history from indirect observations. (without ever seeing an image)….remember the “Whatzit?” 4. How big is the atom? • The diameter is about one hundred-millionth of a centimeter (0.00000001 cm)
  4. 4. 5. What are the basic particles of an atom? There are three different types of particles; protons, neutrons and electrons They are called subatomic particles • 6. What is a proton? 7. What is a neutron? • • • • • Found in the nucleus (center) of the atom Positively charged Mass of 1 amu (atomic mass unit) Found in the nucleus (center) of the atom No charge Mass of 1 amu
  5. 5. 8. What is an electron? Draw this pic • • • • • 9. What charge does the nucleus have? Why? • • • Found orbiting outside the nucleus of the atom Negative charge Mass of 1/1840 amu This particle determines how the element will bond This particle also determines the charge of the atom Positive Only protons (+) and neutrons (no charge) in the nucleus No other particles to cancel out the + particles in this space
  6. 6. 10. What part of the atom take up the most space? (volume) 11. Which part of the atom has the most mass? 12. What does a model of the atom look like? • • • • • • • • The electron cloud EX: If the center of an atom was the size of a bee, the atom would be as big as a football stadium The nucleus (contains protons and neutrons) Both subatomic particles have 1 amu Pg. 174 in your text. Label: proton, neutron, electron & nucleus. Label their charges. Color each particle a different color
  7. 7. 13. If all elements are made up of atoms, how do we know which element we are looking at? • • • • 14. What charge do the atoms have? • • 15. Are there atoms that are charged? • • • Each element has their own unique amount of protons No two elements have the same amount of protons Count the protons in the nucleus and you can identify what element you are looking at Atoms found on the Periodic Table are electronically neutral. They have the same # of protons (+) and electrons (-),. Their charges cancel each other out. Yes, they are called IONS Ions will have more or less electrons than protons PLASMAS contain IONS
  8. 8. 16. Periodic Table Connection • Each element box contains all the information for finding the number of subatomic particles • Label the CARBON box using the key on pg. 196 • • # of Protons # of Electrons if the atom is neutral (has not charge) 17. How do you read the Periodic Table box? (pg. 196) 18. The atomic number tell you the number of?
  9. 9. 19. The atomic mass tells you the number of? • 20. How do you find the # of neutrons • • • • 21. How do you know which is the most common ISOTOPE of an element? Protons added to the number of Neutrons In other words: the mass of the nucleus Round the atomic mass to the nearest whole # Subtract the Atomic Number from the Atomic Mass Your answer represents the # of neutrons in the most common isotope of an element • Round the atomic mass • • EX: Li 6.9 Most common Isotope = Li 7 Cu 63.5 Most common Isotope = Cu 64
  10. 10. 22. What is an ISOTOPE? • Same element with a different # of neutrons 23. What is an example of an ISOTOPE? • Hydrogen 1, 2 & 3 or Protium, Deutirium and Tritium All have 1 proton Different # of neutrons in the nucleus 24. Illustrate, Label & Color the 3 different forms of Hydrogen (pg. 175) *Clue: Tritium has one electron & 1 proton….how many neutrons? • •
  11. 11. 25. How are the ISOTOPES similar? • • Same # of protons Same element Review: Use your notes to help answer the Review questions.
  12. 12. 1. 2. Power Notes – Due by Oct. 23rd No Homework over the weekend