Today we reviewed information from pp. 347-349. Here we as seeing how all the parts of the Periodic Table came to be and then how to use the Periodic Table. We looked at how pluck information from each of the element tiles and the how to use the Periodic Table to get the information in order to create a Bohr's model of an element. The bottom of our student Periodic Table tells us what each shell is and how many possible electrons can be in each shell.
K= 2 --> shell 1
L= 8 --> shell 2
M= 18 --> shell 3
N= 32 --> shell 4
We then took time to view the video Hunting the Elements from Nova. here we looked at time stamp :41 to :48. This does a great job of explaining how electrons rule the reactivity of elements.
We then pulled the information from the periodic table for the elements Hydrogen, Helium, and Lithium. We then created a Bohr Model for each of these. Remember in order to figure out the number of neutrons, you must subtract the atomic mass by the atomic number. See the information below.
We then started on a worksheet on this material.
Here is the link to the worksheet.
From the information above we are able to get the following:
Atomic Number =
Atomic Mass =
Chemical symbol =
Protons =
Electrons =
Neutrons =
If you are still confused, below are three videos on the Periodic table and how to use it.