Post 6 Atomic Structure and Radioactivity

Finished the Elements in the Star project. Today was a free computer day.
Here's some useful websites for the star blog.
Astronoo (stars)
Astronoo (list of brightest stars)

Post 5 Atomic Structure and Radioactivity

We learned about the half lives of radioactive elements today and played a game consisting of cutting out .5in squares, shaking the squares in a cup and removing the turned squares, represented as one half life, before repeating the process. I also found a good website for the star blog to help with light spectrum of elements and what elements are found in specific stars.
Visible Spectra of the Elements
Stellar Database
Lunapic (used for cropping pictures of visible spectrum)

Post 4 Atomic Structure and Radioactivity

We did the Atomic Structure and Radioactivity lab today. My partner and I counted beans (atoms), found the mass of the beans totals, divided the mass by the amount to get the avg. mass of each bean (isotopes), found the % abundance of each isotope by dividing number of atoms by total number of beanuim atoms (beans in total), and then we calculated the average atomic mass through the equation ((mass)(%)) + ((mass)(%)) and got 0.280885 as the average.

Post 3 Atomic Structure and Radioactivity

Today we learned about how to find the number of protons (the atomic number), neutrons (atomic mass-atomic number), and the electron (depending on if it is an isotope, the electrons will be equal to the number of protons). To find the atomic mass, you must use the equation ((mass)(%))+ ((mass)(%)).

Post 2 Atomic Structure and Radioactivity

Today, in class, we learned about Dalton's Atomic Theory, Law of Constant Composition, how to calculate the percent of compositions, and how atomic models have evolved over time thanks to the influence of Thomson, who discovered electrons, and Rutherford, who discovered protons.

Post 1 Atomic Structure and Radioactivity

Took pretest of second unit over radiation, finding the mass, protons and neutrons, and half life.

Post 2 Nomenclature

Unit one has mostly been basics on converting compounds and formulas, knowing how to name chemicals accurately, and how to understand and recognize them.