1. The first noble gas in the periodic table is   Hydrogen   Helium   Argon   Neon   Hint Half-n-half Clue   2. The element with atomic number 6 is   Oxygen   Neon   Carbon   Boron   Half-n-half Clue   3. Magnesium has an atomic number of   16   24   10   12   Half-n-half Clue   4. Elements in the modern periodic table are arranged on the basis of their   Atomic Number   Chemical Symbols alphabetically   Atomic Mass   Boiling Point   Half-n-half Clue   5. Mercury is a   Non metal   Metal   Lanthanide   Noble Gas   Half-n-half Clue   6. Elements at the extreme right of the periodic table are   Halogens   Alkali Metals   Noble Gases   Transition Metals   Half-n-half Clue   7. Which metal has atomic number 3?   Beryllium   Sodium   Boron   Lithium   Half-n-half Clue