Today, we exercised our comprehension concerning the previous day's content.
We completed three guided practice worksheets:
- "Properties of Metals and Nonmetals"
- Most students did really well on this assignment. Some of the sticking points for certain students included the difference between positive and negative ions and where they are found (by which elements they are formed) on the Periodic Table.
- "Elements and Their Symbols"
- Most students completed this by looking on the Periodic Table. They will become more familiar with the symbols for the elements we encounter most frequently as time progresses.
- I reminded the students that when it comes to element symbols only the first letter is to be capitalized; remaining letters, if any, are uncial.
- "Parts of an Atom"
- A summative assessment, this worksheet asked students to calculate the number of protons, neutrons, and electrons in a variety of elements. Adding to the challenge was the fact that several atoms were ions, or atoms with a charge because of gaining or losing electrons. Another point to this worksheet was that students were asked to supply the atomic numbers or mass numbers for a few elements/ions towards the bottom of the sheet.
- This sheet is due tomorrow, 1 October 2008. Five bonus points will be awarded for writing the first and second modes for the number of electrons.
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