1. The least reactive elements of the periodic table are   Alkaline Earth Metals   Noble Gases   Transition Metals   Alkali Metals   Hint Half-n-half Clue   2. Elements in the modern periodic table are arranged on the basis of their   Chemical Symbols alphabetically   Atomic Mass   Boiling Point   Atomic Number   Half-n-half Clue   3. Mercury is a   Metal   Lanthanide   Non metal   Noble Gas   Half-n-half Clue   4. Elements on the extreme left side of the periodic table are   Transition Elements   Non Metals   Metals   Metalloids   Half-n-half Clue   5. The first noble gas in the periodic table is   Helium   Argon   Neon   Hydrogen   Half-n-half Clue   6. The element with atomic number 6 is   Boron   Neon   Oxygen   Carbon   Half-n-half Clue   7. The law that "the properties of elements are periodic functions of their atomic numbers" was given by   Mendeleev   Moseley   Linus Pauling   Heisenberg   Half-n-half Clue