1. The vertical rows in a periodic table are called   Periods   Groups   Noble Gases   Alkali Metals   Hint Half-n-half Clue   2. The element with atomic weight 14 is   Nitrogen   Boron   Oxygen   Carbon   Half-n-half Clue   3. Magnesium has an atomic number of   16   24   12   10   Half-n-half Clue   4. The first noble gas in the periodic table is   Helium   Argon   Hydrogen   Neon   Half-n-half Clue   5. The law that "the physical and chemical properties of elements are periodic functions of their atomic weights" was given by   Mendeleev   Bohr   Lothar Meyer   Moseley   Half-n-half Clue   6. The Law of Octaves was given by   Mendeleev   John Newlands   Dobereiner   Bohr   Half-n-half Clue   7. Which element has the atomic number 8?   Helium   Oxygen   Lithium   Nitrogen   Half-n-half Clue