I am rather disappointed with my results in the recent science test. Even though I got an high A1, which would definitely pull my insanely high MSG down, I still feel that I could have dome better in various aspects of the paper, particularly in the open ended section.
The first mistake I made was in the drawing of the full electronic configuration of a magnesium ion. I did not write the charge(2+) after drawing the diagram. Obviously, if I had revised properly, I would not have made such a mistake.
The second mistake was in answering the question on isotopes. I had overlooked this aspect completely in my revision and therefore was caught off guard when asked to answer this question. The answer that came of was very weak.
The third mistake was in explaining why elements C and E would form a ionic bond when together. Again, I did not revise completely for this topic and answered by saying that the electronegativity difference between the two elements was too high, causing it to be an ionic bond.
If I had revised more, especially on the ionic bonding part, and not overlook any topics that are tested on, I would obviously have gotten higher marks.
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