Class of: 07-Mar-2016.
Today we started Unit C: Radioactivity. We began with Chapter 10: Radioactivity and the Atom and covered Section 10.1: Radioactivity and its History (p. 275).
Learning Objectives:
- Students will be able to explain the role of cathode rays and X-rays in the discovery of radioactivity, and place those rays on the electromagnetic spectrum.
As an interesting factoid, all of the flags planted on the moon from the Apollo missions are still standing today. However, because of the radiation from the sun they have turned completely white! This is because the radiation breaks the covalent bonds holding together the coloured pigment molecules. Talk about a sunburn!
For the test tomorrow, 08-Mar-2016, please make sure you know the following:
- Metalloids vs metals vs non-metals, parts of the atom, chemical families, and Bohr diagrams.
- Pure substances vs. mixtures, pH and acid/base indicators.
- Naming/writing formulas of molecular and ionic compounds.
- Predicting reaction products and balancing.
- Reaction rate, Kinetetic Molecular Theory, and Collision Theory.
Please work through the following review problems:
p. 279 #1-13