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Chapter 4 Review

Chapter 4 Review. Vocabulary Review!. Matter. Anything that has mass and takes up space. Vocabulary Review!. Atoms . Very small particles that make up all matter. Vocabulary Review!. Nucleus. The center of the atom. Protons and neutrons are located here.

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Chapter 4 Review

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  1. Chapter 4 Review

  2. Vocabulary Review! Matter Anything that has mass and takes up space.

  3. Vocabulary Review! Atoms Very small particles that make up all matter

  4. Vocabulary Review! Nucleus The center of the atom. Protons and neutrons are located here. Contains most of the mass of the atom.

  5. Vocabulary Review! Proton Located in the nucleus. +1 charge 1 amu mass

  6. Vocabulary Review! Neutron Located in the nucleus. 0 charge 1 amu mass

  7. Vocabulary Review! Electron Located in the space around the nucleus. -1 charge 0 amu mass

  8. Vocabulary Review! Subatomic Particles Protons, P+ electrons, e- Neutrons, N

  9. Vocabulary Review! Electron Cloud Region surrounding the nucleus of an atom where an electron is most likely to be found

  10. Vocabulary Review! Compound Two or more atoms chemically connected

  11. Vocabulary Review! Atomic # The number of protons an atom has The top number on the periodic table squares

  12. Vocabulary Review! Mass # The sum of protons and neutrons an atom has. The bottom number on the periodic table squares

  13. Vocabulary Review! Isotopes Atoms of the same element containing a different number of neutrons

  14. Vocabulary Review! Cation A positive ion, caused by losing 1 or 2 electrons.

  15. Vocabulary Review! Anion A negative ion, caused by gaining 1 or 2 electrons.

  16. What did Thomson discover? electrons

  17. What did Dalton’s model of the atom look like? Like a marble

  18. What is the atomic number of Selenium?

  19. Write down an example of matter Anything: Pencil, Person, Air, Table, Etc.

  20. What did Thomson’s model of the atom look like? Like a chocolate chip cookie

  21. What is the name of our current model? Electron Cloud

  22. What is the mass number of Selenium?

  23. How many protons does Silicon have?

  24. What is the charge and mass for an electron? -1 0 amu

  25. How many neutrons does Krypton have?

  26. What is the charge and mass for a proton? +1 1 amu

  27. How many electrons does Silicon have?

  28. NaCl is an ionic compound. What can their charges tell you about Na+ Cl- Opposite charges attract to form molecules

  29. For an atom to be neutral, which two subatomic particles need to be present in the same amount? Protons electrons

  30. Which subatomic particle is located in the energy levels of an atom? electron

  31. How many electrons can be in the first energy level of an atom? 2

  32. How many electrons can be in the second energy level of an atom? 8

  33. Use the Periodic Table to draw an atom of Beryllium

  34. Now change your Be atom into a cation. +2 charge

  35. What is the charge and mass for a neutron? 0 1 amu

  36. How many neutrons does Silicon have?

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