Comparing Atom Sizes-- Lab Report

Procedure-
1. As you go down a column, family, or group in the periodic table, atoms increase in size. This is because the additional electrons and elements with higher atomic numbers are filling orbitals that have a larger radius. The size of atoms is determine by the size of the electron distribution of the valance orbitals.

2.

This is the data table for the sizes of radius's for different elements.

 
 3.












Analyze and Conclude

1. Yes my procedures were correct.                          

 
3. The points connected into a semi straight line. The graph is showing that the radius will increase gradually.
4. I think the largest atom would be number 114 on the periodic table because the elements increase gradually and it is the last element, and therefor it would be the biggest.
 

Current Event 1

              

Metals and Nonmetals

What Are the Differences between Metals and Nonmetals?

 On the periodic table of elements there are many types of elements but they are divided into two groups. Metals and None-metals. You can tell them apart by the zig zag line or “the golden staircase” on the periodic table. The non metals are on the right part of the golden staircase and are often called “metalloids or semi metals.” We use physical and chemical properties to tell apart the metals and non metals. The physical properties of metals are; shininess, good conduction of heat and electricity, high melting point and density, can change shapes or can be hammered, you cannot see through them, and metals make bell like sounds. Know the chemical properties of metals are; have 1-3 electrons, loose electrons easily. They also redact easily. Know the nonmetals are different. Their physical properties are; poor at conducting energy and heat, can be any state which all depends on the room temperature. Nonmetals are transparent and have a “dull appearance”. The chemical properties of nonmetals are the following; that they have 4-8 electrons, but everything else is basically the same as the metal chemical properties. Know we see that nonmetals and metals are very different but do own some similar chemical properties.  

 

http://chemistry.about.com/od/periodictableelements/a/Metals-And-Nonmetals.htm