### October 2016 archive

How can I find data on elements easily and quickly?  I spend too much time looking up the indivdual physical properties of elements.

I could look each element up individually at the library and write everything in a notebook so that i could look them up.  This would be too time consuming because some information you have to dig a little deeper for.  You could look up each element individually and print everything you need to know and organize it in a spreadsheet.   This would take a long time too.  If I was looking for an app to use for looking up elements, I would look for one that can show you things you can’t usually find in a normal periodic table.  I would also want an app that would make my work easier as a student.  I would want something that  would provide good information quickly and easily.

The app I found is called K12 Periodic Table.  It was easily found on the app store and was free.

This app makes finding data on elements much easier.  The app has a great feature allowing you to look at the melting and boiling point of each element, number of atoms, number of protons, number of electrons and atomic number.  This app also shows the Lewis diagram for some elements. It also has settings to allow you to organize the elements by colour coding them by melting and boiling points.  You can change the settings to categorize the elements with the most outer orbitals,  organize by radius, ion radius, electronegativity and ionization energy. Another setting allows you to change the temperatures from Kelvin, Celsius and Fahrenheit.  You also have the option us use the traditional or expanded layout.  I preferred the  traditional layout.

To use this app you tap on the element you want to research and all of the data pops up in a block on the top of the screen.

This app is really easy to use and was easy to find on the app store.  It has most of the information that a high school student would need when studying the periodic table in science or chemistry class.   It is easy to navigate and is really user friendly.  The app could be better if it showed a photograph of each element if possible and showed a diagram of what the atoms would look  like. A photo of each element at it’s melting or boiling point would be useful too in understanding some of the properties of elements.   It doesn’t give a clear reading of the number of ions for the charge and are a little bit hard to find.  They could also offer an alphabetical list of elements so that you wouldn’t have to search the periodic table for what you are looking for if you don’t know where it is. I will probably keep this app on my device for future use.

$\frac{3}{2} \div \frac{1}{2}$ + $3^2$$\sqrt{25}$

$\frac{3}{2} \times \frac{1}{2}$ + 9 – 5

$\frac {6}{2}$ + 4

$3+4$

$= 7$