4 Written Questions

1. group 17; contains nonmetals; 7 electrons in its outermost energy level; very reactive; poor conductors of electric current; never in its uncombined form in nature; combine with most metals to form salts
2. proposed modern periodic table, arranged table in order of atomic number instead of mass, came up with periodic law--physical and chemical properties of the elements are periodic functions of thier atomic number
3. Groups 3-12, 1-2 electrons in the outer energy level, less reactive than alsali-earth metals, shiny, good conductor of thermal energy and electrical current, high density
4. recurring or reappearing from time to time

4 Multiple Choice Questions

1. highly reactive, group 1
   1. Akali Metals
   2. Transition Metals
   3. Akaline-Earth Metals
   4. Halogens
2. Vertical column in the periodic table
   1. Periodic
   2. group
   3. period
   4. Halogens
3. elements belonging to group two on the periodic table. They are less reactive and harder than alkali metals.
   1. Noble Gasses
   2. Akaline-Earth Metals
   3. Akali Metals
   4. Transition Metals
4. the principle that chemical properties of the elements are periodic functions of their atomic numbers
   1. Periodic Law
   2. Periodic
   3. Periodic Table
   4. period

4 True/False Questions

1. Periodic Table → the principle that chemical properties of the elements are periodic functions of their atomic numbers

   True        False

2. Noble Gasses → non-metals, group 18, the most non-reactive elements

   True        False

3. Dmitri Mendeleev → Russian Chemist, demonstrated a connection between atomic mass and elemental properties arranged the elements in order of increasing atomic mass predicted the existence and properties of undiscovered elements, Russian chemist who developed a periodic table of the chemical elements and predicted the discovery of several new elements

   True        False

4. period → recurring or reappearing from time to time

   True        False