Mass of subatomic particles

In this lesson we learned about isotopes, atomic mass and how to calculate the average atomic mass of an isotope. An isotope has the same amount of protons but a different amount of neutrons. most elements on the periodic table have multiple isotopes which is why the atomic mass on the periodic table is a weighted average. The formula we used in order to calculate the percent abundance of an isotope was the mass times the percent amount plus the mass of the other isotope to times the percent abundance of this isotope which gives you the average atomic mass.

if you want to learn more about protons, neutrons, mass, and isotopes visit these websites
http://education.jlab.org/qa/pen_number.html
https://en.wikipedia.org/wiki/Isotope

Beanium Lab

In this lab we take a look at a new element discovered called Beanium. We examine the different isotopes which come in 4 different forms white, black, red, and pinto Beanium. We were given a sample of Beanium which contained these four colors of Beanium. First we counted the number of atoms of the different isotopes present. Then we added the number of atoms of each isotope together to get the total number of beanium atoms in the sample. Next we got the total mass of all the atoms of each of the different isotopes. Then we divided this number by the number of atoms of the isotope present to get the average mass of the isotope. The last piece of information we got was the percent abundance of each of the isotopes. We got this value by dividing the number of atoms of each isotope present by the total number of beanium atoms in the sample.

Atomic theory and nuclear chemistry

The first lesson in the unit was about the different atomic theories that had existed.

The first theory was Dalton's atomic theory which had 5 postulates

1. All elements are composed of atoms 
2. all atoms of a given element are identical
3. atoms of different elements are different
4. compounds consist of the atoms of different elements
5. atoms are indivisible and are not created or destroyed in a chemical reaction

The law of constant composition is also covered in this section of the unit which states that a compound always contains the same proportion by mass of the element of which it is composed

We learned how to calculate the percent composition of each component in a compound because of this law of constant composition

Another person we learned about was JJ Thomson who helped to create the chocolate chip model which he discovered by using a cathode ray to show atoms of any element emit particles with a negative charge

The last theory we learned was the modern theory developed by Rutherford and his gold foil experiment which proved the presence of a positively charged center in a atom, the nucleus

reflection of the frontier chemistry project

The frontier chemistry project was a online data base that would help us to help treat the maladies given to us using the plants in the Eastern Deciduous Forest, and the Tall Grass Prairie of Missouri. We had to also go out and find 15 other plants and take pictures with them. the pictures were the hardest part of the project because it actually required me to go out and find these plants, and they were not all located in one place. it was also rather difficult to find the active chemical ingredients that was needed in the data base. after told a website that located these ingredients when given the plants name, it was fairly easy to finish off the project. after the data base was complete we had to write a essay in which we were randomly given one of the maladies and we had to treat it. this was fairly easy also as I had already done all the research necessary and could easily complete it.

Reflection of nomenclature

During the Nomenclature unit we learned how to name the different types of compounds. We learned how to take their chemical forms and tell what their name was, and take their name and tell the chemical formula. We learned binary compounds which was broken into three types; Type I, Type II and Type III. we also learned how to name acids and the polyatomic ions. It will be important to know how to know these rules of naming as they will help us in the future units to come. To practice some of these we did a Grocery store nomenclature lab which used the polyatomic ions to find items that can be found commonly in a household