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UNIT 4 CHECKPOINT

UNIT 4 CHECKPOINT. Not for points, just for practice!. Which of the elements would be the least reactive metal? . 13-Aluminum 14-Silicon 17-Chlorine 12- Magnesium 16-Sulfur. Which element in period 4 will have the highest electronegativity ?. Potassium Calcium Germanium Selenium

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UNIT 4 CHECKPOINT

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  1. UNIT 4 CHECKPOINT Not for points, just for practice!

  2. Which of the elements would be the least reactive metal? • 13-Aluminum • 14-Silicon • 17-Chlorine • 12- Magnesium • 16-Sulfur

  3. Which element in period 4 will have the highest electronegativity? • Potassium • Calcium • Germanium • Selenium • Bromine

  4. Which element in period 4 will have the largest atomic radius? • Potassium • Calcium • Germanium • Selenium • Bromine

  5. Which element in period 4 will have the lowest ionization energy? • Potassium • Calcium • Germanium • Selenium • Bromine

  6. Which element in period 4 will have 4 valence electrons? • Potassium • Calcium • Germanium • Selenium • Bromine

  7. Which element in period 4 will have an oxidation number of 1-? • Potassium • Calcium • Germanium • Selenium • Bromine

  8. Who proposed the theory that properties of elements are periodic functions of their atomic numbers? • Newlands • Dobereiner • Moseley • Mendeleev • Pehanic

  9. 32-Germanium is in what family of the periodic table? • Alkali Metals • Alkaline Earth Metals • Transition Metals • Inner Transition Metals • Post Transition Metals • Halogens • Noble Gases • Metalloids • Other Nonmetals

  10. 56-Barium is in what family of the periodic table? • Alkali Metals • Alkaline Earth Metals • Transition Metals • Inner Transition Metals • Post Transition Metals • Halogens • Noble Gases • Metalloids • Other Nonmetals

  11. An atom of sodium has 11 protons, 12 neutrons, and 10 electrons. What is its mass number? • 21 • 22 • 23 • 22.989

  12. 37-Rubidium would have all of the following characteristics except? • High Conductivity • High Malleability • High Brittleness • Solid at Room Temperature • 1 Valence Electron

  13. 34-Selenium would have how many valence electrons? • 2 • 4 • 6 • 7 • 8

  14. Which of the following is a nonmetal? • 3-Lithium • 16-Sulfur • 49-Indium • 51-Antimony • 58-Cerium

  15. What is the oxidation number for 20-Calcium? • 1+ • 2+ • 6+ • 1- • 2- • 6-

  16. Which element is most likely man-made (not naturally occurring)? • 5-Boron • 17-Chlorine • 38-Strontium • 46- Palladium • 95-Americium

  17. How many valence electrons do the transition metals have? • One valence electron • Two valence electrons • Three valence electrons • Variable number of valence electrons • Zero valence electrons

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