Name: 09/15/23 Chemistry Honors Total Marks: Test-2 Electrons - Electron Configuration, Periodic Trends & Intro to Ions Each Answer is worth 4pts ea. except where indicated. 1. What is Chemistry? 6. Element 118 will not become an ion naturally. True False 7. The Noble Gas configuration for Calcium is: 2 6 2 [Ne] 3s 3p 4s [Ar] 4s2 2. How many V.E. does element 118 have? 2 [He] 4s 2 [Kr] 4s 2 8. What does electronegativity measure? 4 6 8 3. What is the electronegativity of Cu? 9. Draw the Lewis Dot Structure for Neon. 1.91 2.54 1.93 1.9 4. How does electron configuration affect behavior? - 5. Explain why Na will give away 1 e instead of take 7 e- to become an ion. 10. On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group. True Test-2 Electrons - Electron Configuration, Periodic Trends & Intro to Ions False page 1 of 3 Test-2 Electrons - Electron Configuration, Periodic Trends & Intro to Ions 11. Aluminum will become a positive 3 ion because it 09/15/23 17. How many V.E. does Hg have? - will give away 3e . True False 12. The electron configuration shown below is for which element? 1s22s2 2p63s2 18. Ions are atoms that only have a neutral charge. True 19. How many V.E does O have? 2 Si 4 Mg 6 Cl 8 Sr 13. What is the Noble Gas Configuration for Iodine? + 20. When an atom has 11 p and 10 e which symbol is correct? Li 14. Define the Aufbau Principle. False +1 Na +1 +1 K +1 Rb 15. Using Hund's rule of electron configuration, draw the orbital notation of neon. 21. Elements in the transition metal group (d-block) typically have 2 V.E. There are exceptions. Why are the d-block electrons not counted as valence electrons? 16. According to the Pauling scale which elemental pair will form an ionic bond? 22. Define Pauli's Exclusion Principle? K and Si Na and s Fr and Br Ca and I Test-2 Electrons - Electron Configuration, Periodic Trends & Intro to Ions page 2 of 3 Test-2 Electrons - Electron Configuration, Periodic Trends & Intro to Ions 09/15/23 23. Which of the following Group#s have an ionic charge of -2? 14 15 16 17 24. According to Aufbau's Principle the Noble Gas 2 2 configuration of Ti can be written as [Ar] 3d 4s True False 25. Explain why K will become an ion and Ne will not. Test-2 Electrons - Electron Configuration, Periodic Trends & Intro to Ions page 3 of 3