Problem: Where would the following elements be placed on the periodic table?
Procedure:
1. Draw out an abbriviated table.
2. Place the "Elements" in their proper places in the boxes that have been filled in according to the directions below.
Directions: In 1a, the last two boxes need to be filled in.
In 13a, the second box down needs to be filled in.
In 17a, the second box down needs to be filled in.
In 18a, the first and last box need to be filled in.
Elements:
1. This Noble Gas does not have 8 valence electrons.
2. This Nobel Gas has a greater atomic mass than the Noble gas that does not have 8 valence electrons
3. This element has an electron configuration of 1s2,2s2,2p6,3s2,3p1.
4. This element is a Halogen that is in the same period as the element with the electron configuration of 1s2,2s2,2p6,3s2,3p1.
5. This element forms a crystal solid.
6. This element is in the same period as the Noble Gas with the greater atomic mass and contains only one valence electron.
Conclusion:
1. What are the chemical symbols of the elements in the chart?
2. What happens to the size of an atom when you look across a period?
3. What happens to the size of an atom when you look down a group?
QUARTER 2 PACKET 3
