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How many valence electrons does magnesium have?

How many valence electrons does magnesium have?. 2. How many valence electrons does nitrogen have?. 5. What is the oxidation number of Oxygen?. -2. Which is the only noble gas without 8 valence electrons?. He. How many electrons would Fluorine like to lose or gain to become fluoride?.

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How many valence electrons does magnesium have?

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  1. How many valence electrons does magnesium have? • 2

  2. How many valence electrons does nitrogen have? • 5

  3. What is the oxidation number of Oxygen? • -2

  4. Which is the only noble gas without 8 valence electrons? • He

  5. How many electrons would Fluorine like to lose or gain to become fluoride? • Gain 1

  6. What is the charge of a Fe (II) ion? • +2

  7. What is the name of K2O? • Potassium oxide

  8. What is the name of SiO2? • Silicon dioxide

  9. What is the name of Cu2O? • Copper (I) oxide

  10. What is the formula for sodium sulfate? • Na2SO4

  11. What is the formula (with charge) for a phosphate ion? • PO43-

  12. In Beryllium Chloride (BeCl2), which element is losing electrons? How many? • Be loses 2

  13. What is happening with the electrons in a single covalent bond? • 2 electrons are shared between atoms

  14. What is the EN difference in a Carbon-Oxygen bond? Is that polar or non? • 0.9, polar

  15. Why is CO2 a non-polar MOLECULE? • Symmetrical; dipoles cancel

  16. What symbol do we use for a dipole? • +

  17. What are the electrons doing in a POLAR covalent bond? • Being shared UNEQUALLY

  18. Is TiO ionic or covalent? • Ionic

  19. Is NO ionic or covalent? • Covalent

  20. Is NH4OH ionic or covalent? • Ionic

  21. What is the name of NH4OH? • Ammonium hydroxide

  22. What is the formula for nickel (II) carbonate? • NiCO3

  23. How many domains does the carbon in CH4 have? • 4

  24. What is the name of the shape CH4 has? • Tetrahedral

  25. How many domains does the carbon in NH3 have? • 4

  26. What is the name of the shape NH3 has? • Trigonal pyramidal

  27. Which element only needs 6 electrons (instead of an octet)? • Boron

  28. Why is a water molecule bent instead of linear? • Lone pairs

  29. Which is the strongest intermolecular force? • Molecule-ion interaction

  30. Which intermolecular force is responsible for water’s high boiling point? • Hydrogen bonding

  31. Hydrogen bonding is an extra strong example of what other intermolecular force? • Dipole-dipole interaction

  32. Which intermolecular force is present with nonpolar compounds? • Dispersion forces

  33. One of which 3 elements needs to be attached to hydrogen for hydrogen bonding to occur? • N, O, or F

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