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The assignment for this unit is in two parts; for part one you are required to write an essay, and for part two you will need to deliver a short presentation. Both parts of the assignment are based on scenarios which have been provided. You are required to write an essay which covers scenarios 1, 2 and 3.
You are working in a laboratory, and a series of samples is received which you are asked to identify. The samples are provided by an organization which does not have specialized chemistry knowledge, so your report should include significant information to enable them to understand how you have identified the samples, as well as an explanation of the basic structure of an atom. Through experimentation you discover that the samples have the following atomic numbers:
Consider the same four elements that you identified in scenario one. For each of these, you need to write their electron configurations in terms of s, p, d and f shells and then explain your reasoning.
Read the following extract:
“Atmospheric ions are electrically charged particles which occur naturally in the atmosphere. They form in the upper atmospheric layers mainly because of the action of ultraviolent radiation from the sun, a swell as in lower atmospheric layers as a result of radioactive radiation and cosmic rays. These cause ionization of neutral molecules or atoms. As a result, ions are formed. These ions almost instantaneously combine to form molecules with ionic bonds.”
“A polymer is a substance which has a molecular structure comprising of a large number of identical molecules covalently bonded together to form a long chain structure. Many synthetic organic materials are polymers, such as nylon, polythene and Kevlar.”
You are required to carry out a short presentation which is based upon scenario 4.
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