Ions quiz Loading... 1. What are the elements in group 0 called?Alkali metalsNoble gasesLight gasesHalogensQuestion 1 of 22 Loading... 2. Explain why magnesium oxide has a higher melting point than sodium chloride.Sodium chloride is a simple molecular substance so there are only weak intermolecular forces which require little energy to breakMg²⁺ and O²⁻ ions have a higher charge than sodium and chloride therefore the electrostatic forces between the ions are much stronger. This requires more energy to break.Mg²⁺ and O²⁻ ions are larger than sodium and chloride therefore the electrostatic forces between the ions are much stronger. This requires more energy to break.Magnesium and oxygen are more reactive elementsQuestion 2 of 22 Loading... 3. How many electrons in a sulfide ion?n/a (Sulfide does not exist)181610Question 3 of 22 Loading... 4. What do each of the following state symbols represent: (s), (l), (g), (aq)(s) - solid. (l) - liquid. (g) - gas. (aq) - water(s) - solution. (l) - liquid. (g) - gas. (aq) - water(s) - solid. (l) - liquid. (g) - gas. (aq) - aqueous (in solution)(l) - solid. (g) - liquid. (s) - gas. (aq) - aqueous (in solution)Question 4 of 22 Loading... 5. 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 outer shellSame number of electrons in the inner shellsame number of electron shellsSame electronic configurationQuestion 5 of 22 Loading... 6. What holds ions together?Ions are held together by a strong electrostatic attraction between the oppositely charged ionsIons are held together by a strong electrostatic attraction between the similarly charged ionsIons are held together by a strong magnetic attraction between the oppositely charged ionsIons are held together by a strong electrostatic attraction between the shared pair of electrons and their nucleiQuestion 6 of 22 Loading... 7. State the formula of the hydrogen ionH₃O⁺H₃O⁻H⁺H⁻Question 7 of 22 Loading... 8. Balance the following equation: WO₃ + H₂ → W + H₂O 2WO₃ + 3H₂ → 2W + 6H₂O WO₃ + 3H₂ → W + 3H₂O WO₃ + 6H₂ → W + 3H₂O WO₃ + 3H₂ → W + 6H₂OQuestion 8 of 22 Loading... 9. State the formula for the iron (III) ionFe³⁺Fe³⁻Fe²⁻Fe²⁺Question 9 of 22 Loading... 10. How many electrons in the outer shell of group 5 elements?4865Question 10 of 22 Loading... 11. 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 electronic configurationSame number of electron shellsSame number of electrons in the inner shellsame number of electrons in the outer shellQuestion 11 of 22 Loading... 12. 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 have different numbers of electrons in their outer shellElements in the same group of the periodic table are all the same type of element (metal, non-metal etc.)Question 12 of 22 Loading... 13. Explain, in terms of electrons, why isotopes have the same chemical propertiesIsotopes have different massesIsotopes have the same number of protons but a different number of neutronsIsotopes have the same number of electronsIsotopes are radioactiveQuestion 13 of 22 Loading... 14. What is the formula for calcium nitrate?Ca₂NO₃Ca(NO₃)₂CaNO₂CaNO₆Question 14 of 22 Loading... 15. Explain, in terms of structure and bonding, why magnesium oxide has a higher melting point than sodium chloride Sodium chloride is a simple molecular substance so there are only weak intermolecular forces which require little energy to breakMg²⁺ and O²⁻ ions are larger than sodium and chloride therefore the electrostatic forces between the ions are much stronger. This requires more energy to break.Magnesium and oxygen are more reactive elementsNaCl and MgO both have a giant ionic structure with strong electrostatic forces between oppositely charged ions. The Ions in MgO have a charge of 2 and -2, but in NaCl the charges are 1 and -1. So the bonds in MgO require more energy to breakQuestion 15 of 22 Loading... 16. Explain the term ionic bondAn ionic bond is the strong electrostatic attraction between similarly charged ionsAn ionic bond is the strong magnetic attraction between oppositely charged ionsAn ionic bond is the strong electrostatic attraction between a shared pair of electrons and two nucleiAn ionic bond is the strong electrostatic attraction between oppositely charged ionsQuestion 16 of 22 Loading... 17. How many electrons in a helium atom?4123Question 17 of 22 Loading... 18. What is special about the elements in group 0?They are all diatomicThey are very unreactive (because they have full outer electron shells)They have the same number of electronsThey are all coloured gasesQuestion 18 of 22 Loading... 19. How many electrons in an argon ion?81018n/a (Argon is a noble gas so the atom already has a full outer shell of electrons so it does not form ions.)Question 19 of 22 Loading... 20. What is needed to complete this diagram to show the ionic bonding in magnesium chloride, MgCl₂ ?1) eight electrons around the chloride (seven dots and one cross) 2) A charge of +2 on the magnesium and -1 on the chloride 3) A second chloride ion the same as the first1) eight electrons around the chloride (seven dots and one cross) 2) A charge of +2 on the magnesium and -1 on the chloride 3) A second magensium ion the same as the first1) eight electrons around the chloride (seven dots and one cross) 2) A charge of +1 on the magnesium and -2 on the chloride 3) A second chloride ion the same as the first1) eight electrons around the magnesium (any combination of dots and one crosses) 2) A charge of +2 on the magnesium and -1 on the chloride 3) A second chloride ion the same as the firstQuestion 20 of 22 Loading... 21. What is needed to complete this diagram to show the ionic bonding in sodium chloride, NaCl ?1) eight electrons around the chloride (seven dots and one cross) 2) A charge of -1 on the sodium and +1 on the chloride1) eight electrons around the chloride (seven dots and one cross) 2) A charge of +1 on the sodium and -1 on the chloride1) seven electrons around the sodium 2) one electon around the chloride 3) A charge of +1 on the sodium and -1 on the chloride1) seven electrons around the chloride 2) one electon around the sodium 3) A charge of +1 on the sodium and -1 on the chlorideQuestion 21 of 22 Loading... 22. What is the formula for silver sulfate?AgSAg₂SO₄AgS₂Ag(SO₄)₂Question 22 of 22 Loading... 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