IPC 15 Week Exam Review

  1. What are valence electrons? ______
  2. Elements in the same (group/period) have the same number of valence electrons.
  3. The first energy level can hold a maximum of ______electrons.
  4. All energy levels after the first energy level can hold a maximum of ______electrons when acting as the valence shell.
  5. Elements in group 1 on the periodic table are called Alkali metals. Alkali metals all have _____ valence electron(s), and are (very/not very) reactive. They tend to (lose/gain) electrons easily and form positive cations.
  6. Elements in group 2 on the periodic table are called Alkaline earth metals. Alkaline earth metals all have ______valence electron(s).
  7. Elements in the ‘d’ block (in the middle) of the periodic table are called Transition metals. Transition metals (do/do not) have a set number of valence electrons and have a (high/low) melting point. They have a very diverse set of physical and chemical properties.
  8. Elements in group 17 on the periodic table are called Halogens. Halogens all have ______valence electron(s), and are (very/not very) reactive. They tend to (lose/gain) electrons easily and form negative anions. They are nonmetals.
  9. Elements in group 18 on the periodic table are called Noble Gases. Noble Gases all have ______valence electron(s), and are (very/not very) reactive. They are nonmetals.
  10. Mendeleev arranged his periodic table by increasing (atomic number/atomic mass). Elements were grouped with elements that had similar properties.
  11. Mosely improved on the periodic table by arranging it by increasing (atomic number/atomic mass). He kept the similar properties grouping Mendeleev did.
  12. Draw the Lewis dot structure for hydrogen and lithium.
  13. Draw the Lewis dot structure for beryllium and magnesium.
  14. Draw the Lewis dot structure for boron and aluminum.
  15. Draw the Lewis dot structure for carbon and silicon.
  16. Draw the Lewis dot structure for nitrogen and phosphorus.
  17. Draw the Lewis dot structure for oxygen and sulfur.
  18. Draw the Lewis dot structure for fluorine and chlorine.
  19. Draw the Lewis dot structure for helium and neon.
  20. What conclusions can you reach about elements in the same group/family/column? ______
  21. An isotope is a variation of an atom with the same number of (protons/neutrons) but different number of (protons/neutrons). They have different (atomic numbers/atomic masses).
  22. The principal energy level is represented by n and is based on the (period/group) the element is in.
  23. The total number of protons and neutrons in the nucleus of an atom is its (average atomic mass/mass number).
  24. Elements in the same (period/group) have similar properties.
  25. Metals are on the (left/middle/right) of the periodic table.
  26. Nonmetals are on the (left/middle/right) of the periodic table.
  27. (Electrons/valence electrons/protons) determine how an element will bond.
  28. Create 5 practice test questions below and see if your peers can correctly answer them: