1. Hg   Bromine   Mercury   Helium   Iridium   Hint Half-n-half Clue   2. Na   Sodium   Copper   Iridium   Hydrogen   Half-n-half Clue   3. Mg   Antimony   Magnesium   Fluorine   Xenon   Half-n-half Clue   4. Br   Helium   Manganese   Silver   Bromine   Half-n-half Clue   5. Cd   Cadmium   Fluorine   Boron   Chlorine   Half-n-half Clue   6. Ir   Iodine   Iridium   Beryllium   Cobalt   Half-n-half Clue   7. C   Tin   Antimony   Carbon   Hydrogen   Half-n-half Clue