Today in class we finished going over the Atom and Periodic Table assessment. Students wishing to reassess need to make plans with me to review and reassess prior to next Thursday 2/4.
Today in class we began going over the answers to the assessment that the students took on Wednesday. Tomorrow we will finish going over the assessment, and then begin our next topic of bonding and chemical names.
Today in class the students took their assessment for the unit on the atom and the periodic table.
Tomorrow, we will begin working on the next unit, Bonding & Naming. Today in class we reviewed the answers to the study guide to ensure everyone has material to study from for tomorrow's assessment. Afterwards, we played a review game in which teams were able to win extra credit for themselves on tomorrow's assessment.
HW: Study for the assessment on the Atom and Periodic Table tomorrow! Today in class we began working through our study guides in order to prepare for our assessment on the atom and the periodic table on Tuesday.
Today in class we reflected upon our last 5 months together as a class and made note of issues and problems we have been having. As a class we began discussing possible solutions to these issues to pave the way for a smooth second half of the year. Tomorrow, we will develop our set of rules, consequences, and rewards for the remainder of the year.
Today in class we reviewing what we observed yesterday in the lab and worked to explain our observations based on how strongly attracted the nucleus of an atom is attracted to its electrons. Afterwards, we worked on practice problems to begin preparing for our test next week.
Today in class we performed a series of experiments to test the reactivity of Na, K, Ca, Mg, and Al in water. Tomorrow we will use these experiements to identify a relationship between how metals react and their size.
Today we played a game to review atomic radius. The students each had a set of cards with elements printed on them. Each round, each player would reveal a card, and together the students had to organize them elements from smallest atomic radius to largest, and then answer a question about it.
Today in class we discussed the factors of magnetic attraction & repulsion and how we can use these properties to understand the trends in atomic radius discussed on Friday:
Since the number of protons (positive charges) the nucleus of an atom has increases as we go to the right on the table, it makes the electrons more strongly attracted, pulling them in closer. This leads us to the trend of atoms getting smaller as we move to the right. Since there is a new energy level with each row going down the periodic table, the atomic radius must get bigger as we go down the table. |
Mr. SasséGeneral Chemistry Archives
February 2016
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