1. Mn   Krypton   Manganese   Barium   Gold   Hint Half-n-half Clue   2. Cu   Phosphorus   Chromium   Potassium   Copper   Half-n-half Clue   3. Ag   Silver   Argon   Antimony   Iron   Half-n-half Clue   4. Hg   Uranium   Mercury   Cobalt   Iridium   Half-n-half Clue   5. Na   Sodium   Lithium   Fluorine   Copper   Half-n-half Clue   6. Os   Silver   Osmium   Lithium   Phosphorus   Half-n-half Clue   7. Cl   Iodine   Carbon   Chlorine   Hydrogen   Half-n-half Clue