Ions quiz Loading... 1. Why do ionic substance have high melting and boiling points?There is a weak electrostatic attraction between oppositely charged ions, in a giant structure, which requires little energy to overcomeThere is a strong electrostatic attraction between similarly charged ions, in a giant structure, which requires a lot of energy to overcomeThere are weak intermolecular forces, in a simple molecular structure, which require little energy to overcomeThere is a strong electrostatic attraction between oppositely charged ions, in a giant structure, which requires a lot of energy to overcomeQuestion 1 of 22 Loading... 2. Why do elements in the same group of the periodic table have similar chemical properties?Elements in the same group of the periodic table have the same number of electrons in their outer shellElements in the same group of the periodic table have the same number of protonsElements in the same group of the periodic table are all the same type of element (metal, non-metal etc.)Elements in the same group of the periodic table have different numbers of electrons in their outer shellQuestion 2 of 22 Loading... 3. State the fomula for the two ions in iron (II) sulfideFe³⁺ and S³⁻Fe²⁺ and S²⁻Fe³⁺ and S²⁻Fe⁺ and S⁻Question 3 of 22 Loading... 4. What is needed to complete this diagram to show the ionic bonding in potassium oxide, K₂O ?1) eight electrons around the oxide (six dots and two cross) 2) A charge of +1 on the potassium and -2 on the oxide 3) A second oxide ion the same as the first1) eight electrons around the oxide (six dots and two cross) 2) A charge of +2 on the potassium and -1 on the oxide 3) A second potassium ion the same as the first1) eight electrons around the oxide (six dots and two cross) 2) A charge of +1 on the potassium and -2 on the oxide 3) A second potassium ion the same as the first1) eight electrons around the potassium (any combination of dots and one crosses) 2) A charge of +2 on the oxide and -1 on the potassium 3) A second potassium ion the same as the firstQuestion 4 of 22 Loading... 5. How many electrons in the outer shell of group 2 elements?3120Question 5 of 22 Loading... 6. What do each of the following state symbols represent: (s), (l), (g), (aq)(s) - solid. (l) - liquid. (g) - gas. (aq) - aqueous (in solution)(s) - solution. (l) - liquid. (g) - gas. (aq) - water(l) - solid. (g) - liquid. (s) - gas. (aq) - aqueous (in solution)(s) - solid. (l) - liquid. (g) - gas. (aq) - waterQuestion 6 of 22 Loading... 7. Explain, in terms of electrons, why isotopes have the same chemical propertiesIsotopes are radioactiveIsotopes have different massesIsotopes have the same number of protons but a different number of neutronsIsotopes have the same number of electronsQuestion 7 of 22 Loading... 8. What are the elements in group 0 called?Light gasesAlkali metalsNoble gasesHalogensQuestion 8 of 22 Loading... 9. Explain, in terms of structure and bonding, why sodium chloride has a very high melting pointNaCl has a giant ionic structure with weak electrostatic forces between oppositely charged ions that require little energy to breakNaCl has a simple molecular structure with strong electrostatic forces between oppositely charged ions that require a lot of energy to breakNaCl has a simple molecular structure with weak intermolecular forces that require little energy to breakNaCl has a giant ionic structure with strong electrostatic forces between oppositely charged ions that require a lot of energy to breakQuestion 9 of 22 Loading... 10. How many electrons in a phosphide ion?n/a (the phosphide ion does not exist)51518Question 10 of 22 Loading... 11. State the fomula for the two ions in vanadium (V) oxideV⁺ and O⁻V⁵⁺ and O²⁻V²⁺ and O²⁻There are no ions because it is covalentQuestion 11 of 22 Loading... 12. What is the formula for lithium carbonate?Li₂CO₃Li(CO₃)₂Li₃(CO₃)₂Li₂(CO₃)₃Question 12 of 22 Loading... 13. How many electrons in a helium ion?n/a (Helium is a noble gas so the atom already has a full outer shell of electrons so it does not form ions.)204Question 13 of 22 Loading... 14. When are ions attracted to each other?When the ions are oppositely chargedWhen the ions are the same sizeWhen the ions are very smallWhen the ions have the same chargeQuestion 14 of 22 Loading... 15. State the formula of the hydrogen ionH₃O⁻H⁺H⁻H₃O⁺Question 15 of 22 Loading... 16. On the Periodic table what is the meaning of the word Group? What does that tell us about the electron configuration of the atom?Same number of electrons in the inner shellSame number of electron shellsSame electronic configurationsame number of electrons in the outer shellQuestion 16 of 22 Loading... 17. State the formula for the copper (II) ionCu²⁻Cu²⁺Cu⁺Cu⁻Question 17 of 22 Loading... 18. What is the formula for magnesium iodide?Mg₂I₂MgIMgI₂Mg₂IQuestion 18 of 22 Loading... 19. How many electrons can the second shell hold?162328Question 19 of 22 Loading... 20. What is special about the elements in group 0?They are all coloured gasesThey have the same number of electronsThey are all diatomicThey are very unreactive (because they have full outer electron shells)Question 20 of 22 Loading... 21. On the Periodic Table what is the meaning of the word Period? What does that tell us about the electron configuration of the atom?Same number of electrons in the inner shellsame number of electron shellsSame electronic configurationsame number of electrons in the outer shellQuestion 21 of 22 Loading... 22. Balance the following equation: WO₃ + H₂ → W + H₂O WO₃ + 3H₂ → W + 3H₂O 2WO₃ + 3H₂ → 2W + 6H₂O WO₃ + 3H₂ → W + 6H₂O WO₃ + 6H₂ → W + 3H₂OQuestion 22 of 22 Loading... 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