Element Relationships

Relationships among Elements
1. Look at the shape of your graph.What patterns do you observe? 
   On the graph, there are high peaks and low points, the high peaks seem to get lower as you go through the elements left to right, meaning the radii must get higher. Also two peaks in, going from left to right, there is a really big dip.
2. What family is represented by the high peaks in your graph?
   The elements represented in this pattern are the elements, Li, K, Na, and Rb. These are all in Group 1 of the periodic table, but are also Alkaline metals are represented.
3. What family is represented by the low points in your graph?
   The elements represented in this pattern are Cl, Br, and O. These are all part of group 17 on the periodic table, other then that they do not belong to any other characteristic group.
4. What family is represented by the smaller peaks just before the high peaks on your graph?
   The elements represented in this pattern are Ne, Ar and Kr. These elements are not only in group 18 of the periodic table but they are the Noble Gases, meaning they do not react strongly, if at all, with other elements.
5. What trends do you notice about the radii of the elements at the high peaks in your graph as you move from left to right? Look at the periodic table and find the element that represents each high peak. What does each high peak begin in the periodic table? 
   A trend I notice is that as you go from left to right the radii of the atom gets bigger, the high peaks, or atoms at the high peak radii also get bigger as you move from left to right. Also each high peak on the periodic table begins a new period. 
6.  What happens to the radii of the elements between two highest peaks? What does each of these groups of elements represent?
   The radii of atoms numbers 24- 28 the radii slowly gets smaller going from 128-124, all the elements in this group make the big dip in the middle of the graph but also the elements, Cr, Co, Fe, Mn and Ni all begin new groups on the periodic table.
7. How can a graph such as the on you made to help predict the properties of elements that have no yet been discovered yet? How reliable do you think this would be?
     Since the line graph seems to have a pretty constant rise and fall pattern, only changing a slight bit each time, I think you could find a reliable pattern and infer some things about these new element properties. This would probably not be the most reliable way to get the detailed information, but you could definitely find out some basic things.
8.How do the radii of metals in each period compare with the radii of nonmetals in the period?         
   When looking at non-metals and metals in the same period the non-metal have a smaller radius than the metal, an example of this is Na in the 3rd period has an atomic radius of 186 picometers and is a Alkali Metal, while Cl, which is in the same period has an atomic mass of 91 picometers and is a non-metal.