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  1. 3. Element with the highest ionization potential.
  2. 5. This element, the lightest on the periodic table, is essential for water molecules
  3. 7. affinity Amount if energy released when an atom in gaseous state accepts an electron to form anion.
  4. 8. The first metalloid in Modern Periodic Table whose fibres are used in making bullet-proof vests.
  5. 9. the distance from the nucleus to the outermost shell
  6. 10. Ionization potential ___ across a period
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  1. 1. The most electronegative element in the periodic table is:
  2. 2. An element which is used in making fluorescent bulbs and is second member of Group 18 in the Modern Periodic Table.
  3. 4. Present in swimming pools to prevent it from bacterias and viruses
  4. 6. Which is the most electropositive halogen?