1. Magnesium has an atomic number of   16   24   10   12   Hint Half-n-half Clue   2. Elements in the same group have similar   atomic numbers   atomic radii   chemical properties   atomic masses   Half-n-half Clue   3. The element with atomic weight 14 is   Nitrogen   Boron   Carbon   Oxygen   Half-n-half Clue   4. The Law of Octaves was given by   John Newlands   Mendeleev   Dobereiner   Bohr   Half-n-half Clue   5. The least reactive elements of the periodic table are   Transition Metals   Noble Gases   Alkali Metals   Alkaline Earth Metals   Half-n-half Clue   6. The first element in the modern periodic table is   Hydrogen   Oxygen   Lithium   Helium   Half-n-half Clue   7. The law that "the properties of elements are periodic functions of their atomic numbers" was given by   Mendeleev   Linus Pauling   Heisenberg   Moseley   Half-n-half Clue