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- 1. Multiple-choice1 minute1 ptHalogens are relatively ____ melting and boiling points that increase steadily down the group.lowhigh
- 2. Multiple-choice1 minute1 ptHalogens becomes ______ in colour when down to group.darkensbrighter
- 3. Multiple-choice1 minute1 ptWhat is the colour of Fluorine, F2?pale yellowpale greendark purplebrown
- 4. Multiple-choice1 minute1 ptWhat is the colour of Chlorine, Cl2?pale greenpale yellowdark purplebrown
- 5. Multiple-choice1 minute1 ptWhat is the colour of Bromine, Br2?brownpale greenpale yellowdark purple
- 6. Multiple-choice1 minute1 ptWhat is the colour of Iodine, I2?dark purplepale greenpale yellowbrown
- 7. Multiple-choice1 minute1 ptWhat is the forces in halogens in terms of intermolecular forces?van der Waalsionic bondcovalent bondmetallic bond
- 8. Multiple-choice1 minute1 ptWhy do the 1st ionization energy of halogens decrease down the group?the number of electrons increasesatomic radius decreasesincreases the attraction between nucleus and the valence electronsthe strength of shielding decreasesit is harder for valence shell electrons to ionize
- 9. Multiple-choice1 minute1 ptWhy do the 1st ionization energy of halogens decrease down the group?atomic radius increasesthe number of electrons decreasesincreases the attraction between nucleus and the valence electronsthe strength of shielding decreasesit is harder for valence shell electrons to ionize
- 10. Multiple-choice1 minute1 ptWhy do the 1st ionization energy of halogens decrease down the group?decreases the attraction between nucleus and the valence electronsatomic radius decreasesthe number of electrons decreasesthe strength of shielding decreasesit is harder for valence shell electrons to ionize
- 11. Multiple-choice1 minute1 ptWhy do the 1st ionization energy of halogens decrease down the group?the strength of shielding increasesatomic radius decreasesincreases the attraction between nucleus and the valence electronsthe number of electrons decreasesit is harder for valence shell electrons to ionize
- 12. Multiple-choice1 minute1 ptWhy do the 1st ionization energy of halogens decrease down the group?it is easier for valence shell electrons to ionizeatomic radius decreasesincreases the attraction between nucleus and the valence electronsthe strength of shielding decreasesthe number of electrons decreases
- 13. Multiple-choice1 minute1 ptWhich halogen has the highest melting point?AtFClBrI
- 14. Multiple-choice1 minute1 ptWhat happen when going down group 17?the atomic radius increasesthe volatility increasesthe electron affinity increases
- 15. Multiple-choice1 minute1 ptWhat happen when going down group 17?the volatility decreasesthe electronegativity increasesthe bond energy increases
- 16. Multiple-choice1 minute1 ptWhat happen when going down group 17?the electron affinity decreasesthe oxidising power increasesthe reactivity towards hydrogen increases
- 17. Multiple-choice1 minute1 ptWhat happen when going down group 17?the electronegativity decreasesthe oxidising power increasesthe reactivity towards hydrogen increases
- 18. Multiple-choice1 minute1 ptWhat happen when going down group 17?the bond energy decreasesthe atomic radius decreasesthe volatility increases
- 19. Multiple-choice1 minute1 ptWhat happen when going down group 17?the oxidising power decreasesthe electron affinity increasesthe electronegativity increases
- 20. Multiple-choice1 minute1 ptWhat happen when going down group 17?the reactivity towards hydrogen decreases.the bond energy increasesthe oxidising power increases
- 21. Multiple-choice1 minute1 ptThe atomic radius increases when down a group, the number of energy levels (n) _______, so there is a _______ distance between the nucleus and the outermost orbital.increases, greaterdecreases, smallerincreases, smallerdecreases, greater
- 22. Multiple-choice1 minute1 ptDown group 17, the volatility _______ .decreasesincreases
- 23. Multiple-choice1 minute1 ptWhich of the volatility of the elements when down group 17 is correct?F2 > Cl2 > Br2 > I2I2 > Br2 > Cl2 > F2F2 < Cl2 < Br2 < I2Cl2 < F2 < Br2 < I2
- 24. Multiple-choice1 minute1 ptThe volatility of the Group 17 elements, chlorine, bromine and iodine, decreases down the group. What is responsible for this?Number of electrons in the halogen moleculeBond length in the halogen moleculeBond strength in the halogen moleculeElectronegativity of the halogen
