1. Elements at the extreme right of the periodic table are   Halogens   Transition Metals   Alkali Metals   Noble Gases   Hint Half-n-half Clue   2. Magnesium has an atomic number of   24   10   12   16   Half-n-half Clue   3. Mercury is a   Metal   Non metal   Noble Gas   Lanthanide   Half-n-half Clue   4. The first element in the modern periodic table is   Oxygen   Lithium   Hydrogen   Helium   Half-n-half Clue   5. The horizontal rows in a periodic table are called   Atomic Structures   Lanthanides   Groups   Periods   Half-n-half Clue   6. The element with atomic number 6 is   Boron   Oxygen   Carbon   Neon   Half-n-half Clue   7. Elements on the extreme left side of the periodic table are   Non Metals   Transition Elements   Metalloids   Metals   Half-n-half Clue