We started with practice problems from his review book to see which topics we needed to review. We ended up going over ionic, covalent, and metallic bonding. We also reviewed the Law of Conservation of Mass.
Write balanced equations which demonstrate some common transmutations. Determine the induced transmutation of aluminum-24 into sodium-23 accompanied by the release of an alpha particle. Write a second balanced equation for the induced transmutation of oxygen into nitrogen.
Read article regarding early fission research.
Discuss natural occurring nuclear transmutations, and introduce induced transmutations. Outline how and why induced transmutations will involve the bombardment of a nucleus by either a neutron or a high energy alpha or gamma particle. Discuss Rutherford's initial work from 1919 which transmitted a nitrogen isotope 14 into hydrogen and oxygen. Write the nuclear formula and have Ben determine the products formed and the nuclear notation.
Session Minutes
45
Minutes Student Attended
45
Lesson Comments
Ben was able to determine how an alpha particle could overcome the repulsion of the two nuclei through the use of a particle acceleration which suppled sufficient speed and energy to overcome the repulsion
Discuss the discovery of X rays and how they are produced by electrons which are removed "kicked out" from Low energy levels in the atom with higher energy levels electrons taking their place in the atom. View X ray photographs of hand bones. Introduce transmutation of an element's nucleus into a new substance. Show examples of both alpha decay and beta decay and write nuclear equation to demonstrate the new atom formed.
Discuss the history of radioactivity/ Introduce the work of Roentgen, Becquerl, and Curiae.
Define and explain types of isotopes, radioactive decay and radiation . Introduce the 3 main types of radiation.
Use domino blocks to determine the time required for a series of blocks to fall under different conditions of alignment. Discuss the different times and relate it to a nuclear chemistry reaction. Elicit a list of appropriate uses for nuclear reactions. Include electricity production, x rays, equipment sterilization and bactericide uses. List the major nuclear sub-particles and discuss their importance.
Discuss the chemistry of the ketone functional group. Present the structure of acetone as the primary ketone. Discuss the uses of acetone as a solvent for gums, waxes, oils and lacquers. Indicate the major use as nail polish remover. Elicit other uses for acetone, such as removing labels and stickers glued on to glass and dishes
Synthesis an ester using the alcohol methanol and the acid salicylic acid.
The ester produced is methyl salicylate which has a definite oil of wintergreen scent.
The lab report will also involve researching the structural formulas for the reactants and the synthesis formula for the products. Common uses for the product will be researched on the computer and discussed.
Discuss the formation of an aldehyde. Outline a general formula for an aldehyde molecule. Write the general structural formula for a carbonyl group and indicate how an aldehyde forms . List a few common aldehydes and their uses, like formaldehyde for preservation of tissue and organ. Discuss benzaldehyde found in almonds and cinnamaldehyde found in cinnamon.
