Graph Lab Report
The purpose of this lab is to analyze and to become aware of the many trends that exist within a periodic table, as well as to help us develop the skills we need to accurately graph our observations. This is done by collecting data on the elements, graphing them and then finally finding a connection we see in the pattern created on the graph to the placement of the elements on the periodic table. Sergent Welsh periodic table Graph Paper Pencil Eraser Calculator Ruler 2 Coloured Pencils The data for the Atomic Radius and the First Ionization Energy of the first 36 elements was copied from the Sergent Welsh periodic table onto an observation chart. All data was rounded and expressed in three significant digits. An appropriate scale was determined …show more content…
The Noble gases have the smallest values for the atomic radius The Alkali metals have the highest values for the atomic radius The Noble gases have the highest values for the first ionization energy The Alkali metals have the smallest values for the first ionization energy The atomic radius of the transition metals are all decreasing and are doing so in a steady manner that they could all almost be connected by a curved line The ionization energy for the transition metals however are not as consistent and form little bumps on the graph The elements Beryllium, Boron, Magnesium, Aluminum, Zinc and Gallium form little peaks and troughs for both the atomic radius and the ionization energy The elements that are found on the peaks of the AR graph are the elements Hydrogen, Lithium, Sodium and Potassium. These elements are better known as the Alkali metals and are found in the far left column of the periodic table, also known as group 1. The elements that are found on the troughs of the AR graph are the elements Helium, Neon, Argon and Krypton. These elements are better known as the noble gases and are found in the far right column of the periodic table, also known as group …show more content…
The elements that are found on the peaks of the IE graph are the elements Helium, Neon, Argon and Krypton. These elements are better known as the noble gases and are found in the far right column of the periodic table, also known as group 18. This group is not the same group that had the highest atomic radius, in fact, these elements are the one’s with the lowest atomic radius, and thus are found on the trough of the AR graph. The elements that are found on the troughs of the IE graph are the elements Hydrogen, Lithium, Sodium and Potassium. These elements are better known as the Alkali metals and are found in the far left column of the periodic table, also known as group 1. This is probably because as more and more orbital shells are added to the atom, the valence electrons get further and further apart from the nucleus making it easier to remove a valence electron, thus, a low ionization energy is required. In addition, group 1 elements also have the largest atomic size in their periods, which once again means that the valence electrons are the furthest away from the nucleus, hence a low ionization energy is
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