1. Ag   Osmium   Iron   Copper   Silver   Hint Half-n-half Clue   2. Fe   Iron   Copper   Magnesium   Carbon   Half-n-half Clue   3. Mn   Manganese   Mercury   Fluorine   Lithium   Half-n-half Clue   4. Be   Zinc   Beryllium   Tungsten   Gold   Half-n-half Clue   5. Co   Cadmium   Cobalt   Aluminum   Antimony   Half-n-half Clue   6. Kr   Iridium   Iron   Phosphorus   Krypton   Half-n-half Clue   7. C   Iron   Carbon   Platinum   Silver   Half-n-half Clue