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Final Review for Exam: Charge of Particles and Atomic Models

Prepare for your exam with this comprehensive review focusing on the charge of particles, energy levels in atoms, and the history of atomic models. This guide covers essential concepts such as identifying the charge of protons and neutrons, the arrangement of electrons in energy levels, and significant atomic theories proposed by scientists like Ernest Rutherford and J.J. Thomson. Practice questions included help reinforce your understanding, from recognizing neutral particles to understanding the periodic table and the classification of elements. Study hard!

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Final Review for Exam: Charge of Particles and Atomic Models

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  1. Test 3 Review Material! This is the last day before your exam… Study HARD tonight!

  2. Charge of Particles Which of these particles has a neutral charge? • A Photon • B Neutron • C Proton • D Electron

  3. Charge of Particles Which of these particles has a neutral charge? • A Photon • BNeutron • C Proton • D Electron

  4. Energy Levels Which of these belongs in the outermost shell (energy level) of an atom? • F Electrons • G Protons • H Neutrons • J Photons

  5. Energy Levels Which of these belongs in the outermost shell (energy level) of an atom? • FElectrons • G Protons • H Neutrons • J Photons

  6. Protons A proton has which of the following charges? • A Negative • B Neutral • C Positive • D Magnetic

  7. Protons A proton has which of the following charges? • A Negative • B Neutral • C Positive • D Magnetic

  8. J.J. Thomson In J.J. Thomson’s “plum pudding” or “blueberry muffin” model of the atom, which particles do the blueberries represent? • F Photons • G Protons • H Neutrons • J Electrons

  9. J.J. Thomson In J.J. Thomson’s “plum pudding” or “blueberry muffin” model of the atom, which particles do the blueberries represent? • F Photons • G Protons • H Neutrons • J Electrons

  10. Charge of neutron The atom is composed of electrons, protons, and neutrons. What is the electric charge on the neutron? • A -1 • B +1 • C 0 • D +2

  11. Charge of neutron The atom is composed of electrons, protons, and neutrons. What is the electric charge on the neutron? • A -1 • B +1 • C 0 • D +2

  12. History of atomic model Which scientist’s model of the atom has electrons randomly orbiting a positively charged nucleus? Based on his gold foil experiment, he also proposed that the atom is mostly empty space. • F Ernest Rutherford • G Neils Bohr • H John Dalton • J J.J. Thomson

  13. History of atomic model Which scientist’s model of the atom has electrons randomly orbiting a positively charged nucleus? Based on his gold foil experiment, he also proposed that the atom is mostly empty space. • FErnest Rutherford • G Neils Bohr • H John Dalton • J J.J. Thomson

  14. Number of Protons Which of the following lists the elements in order, from those having the least protons to those having the most protons in their atoms? • A O, N, B, Li • B Na, S, Al, Cl • C Rb, K, Na, Li • D O, S, Se, Te

  15. Number of Protons Which of the following lists the elements in order, from those having the least protons to those having the most protons in their atoms? • A O, N, B, Li • B Na, S, Al, Cl • C Rb, K, Na, Li • D O, S, Se, Te

  16. Protons, neutrons, electrons • Determine the number of • PROTONS • NEUTRONS • TOTAL ELECTRONS • AND…VALENCE ELECTRONS for the element Se

  17. Protons, neutrons, electrons • Determine the number of • PROTONS = 34 • NEUTRONS = 79 – 34 = 45 • TOTAL ELECTRONS = 34 • AND…VALENCE ELECTRONS = 6…BECAUSE IT IS IN GROUP 16! for the element Se

  18. GROUP & PERIOD NUMBERS • What group number is Ca in? • What period number is Ar in?

  19. GROUP & PERIOD NUMBERS • What group number is Ca in? • Group 2! Because it is in the 2nd column  • **remember – group = family = column • You stand UP for your family or your group of friends • What period number is Ar in? • Period 3! Because it is in the 3rd row  • **Remember** period = horizontal row • You write a sentence from left to right, and punctuate it with a PERIOD………….

  20. Periodic Table Families Which of the following elements belongs to the family indicated? • F Nitrogen belongs to the halogen family. • G Helium belongs to the noble gas family. • H Calcium belongs to the alkali family. • J Sodium belongs to the alkali earth family.

  21. Periodic Table Families Which of the following elements belongs to the family indicated? • F Nitrogen belongs to the halogen family. • G Helium belongs to the noble gas family. • H Calcium belongs to the alkali family. • J Sodium belongs to the alkali earth family.

  22. Atomic Number Which of these elements has an atomic number of 14? • A N • B Al • C Si • D P

  23. Atomic Number Which of these elements has an atomic number of 14? • A N • B Al • CSi • D P

  24. Number of Protons Which of the following elements has 16 protons? • F Oxygen • G Chlorine • H Sulfur • J Germanium

  25. Number of Protons Which of the following elements has 16 protons? • F Oxygen • G Chlorine • HSulfur • J Germanium

  26. Alkali Metals Which element is an alkali metal? • A K • B Mg • C Al • D Ag

  27. Alkali Metals Which element is an alkali metal? • AK • B Mg • C Al • D Ag

  28. Atomic Mass Which of these elements has the greatest atomic mass? • F B • G C • H N • J Al

  29. Atomic Mass Which of these elements has the greatest atomic mass? • F B • G C • H N • JAl

  30. Mendeleev Mendeleev created the first periodic table by arranging elements in order of – • A decreasing atomic mass • B increasing atomic mass • C increasing atomic number • D increasing densities

  31. Mendeleev Mendeleev created the first periodic table by arranging elements in order of – • A decreasing atomic mass • B increasing atomic mass • C increasing atomic number • D increasing densities

  32. Electrons Electrons involved in bonding between atoms are – • F valence electrons • G inside the nucleus • H closest to the nucleus • J positively charged

  33. Electrons Electrons involved in bonding between atoms are – • Fvalence electrons • G inside the nucleus • H closest to the nucleus • J positively charged

  34. Valence electrons What is the greatest number of valence electrons an atom can have? • A 1 • B 3 • C 8 • D 100

  35. Valence electrons What is the greatest number of valence electrons an atom can have? • A 1 • B 3 • C8 • D 100

  36. Periodic table arrangement The modern periodic table is arranged in order of increasing – • F atomic mass • G number of valence electrons • H atomic number • J number of neutrons

  37. Periodic table arrangement The modern periodic table is arranged in order of increasing – • F atomic mass • G number of valence electrons • Hatomic number • J number of neutrons

  38. Number of protons What information in the periodic table indicates the number of protons in an atom? • A The position of the element in its column • B The element’s chemical symbol • C The element’s atomic number • D The element’s atomic mass

  39. Number of protons What information in the periodic table indicates the number of protons in an atom? • A The position of the element in its column • B The element’s chemical symbol • C The element’s atomic number • D The element’s atomic mass

  40. Periodic Table From an element’s location in the periodic table, you can predict – • F its properties • G its chemical name • H its chemical symbol • J when it was discovered

  41. Periodic Table From an element’s location in the periodic table, you can predict – • Fits properties • G its chemical name • H its chemical symbol • J when it was discovered

  42. Columns in periodic table The elements in a column of the periodic table • A are in the same family. • B are in the same period. • C have the same atomic mass. • D have the same chemical symbols.

  43. Columns in periodic table The elements in a column of the periodic table • Aare in the same family. • B are in the same period. • C have the same atomic mass. • D have the same chemical symbols.

  44. Valence electrons Across a period of eight elements in the periodic table, the number of valence electrons – • F is the same for all eight elements. • G is equal to the period’s number. • H depends on the atomic number of the elements. • J increases from 1-8.

  45. Valence electrons Across a period of eight elements in the periodic table, the number of valence electrons – • F is the same for all eight elements. • G is equal to the period’s number. • H depends on the atomic number of the elements. • Jincreases from 1-8.

  46. Valence electrons Which of the following have the same number of valence electrons? • A the elements in a period • B the elements in a group • C the elements having similar atomic masses • D the elements having similar atomic numbers

  47. Valence electrons Which of the following have the same number of valence electrons? • A the elements in a period • Bthe elements in a group • C the elements having similar atomic masses • D the elements having similar atomic numbers

  48. metals Where are metals located in the periodic table? • F to the left of the zigzag line • G to the right of the zigzag line • H in the top rows • J in the middle rows

  49. metals Where are metals located in the periodic table? • Fto the left of the zigzag line • G to the right of the zigzag line • H in the top rows • J in the middle rows

  50. Group titles/names Which elements have 1 valence electron in their atoms? • A transition metals • B halogens • C alkali earth metals • D alkali metals

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