Bonding Pre-assessment
The questions below are meant to assess how much you currently know about atomic bonding. Please answer these questions without looking up information anywhere. Try your best to answer these questions, but if you really have no idea, you can just say that you don't know.
Taking a pre-assessment has a few purposes. First, it can help you identify what you know and don't know at the beginning of a unit and then see what you have learned at the end. Second, it helps the instructors of the course understand what the students currently know and what they learn in the course. This can help them tailor the course to the needs of the students and improve the course in coming years.
You will only be graded on completion. Please only take ~10 minutes.
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What chemistry courses have you taken and where/when did you take them?
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When atoms are bonded, what is it that holds them together?
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What determines how close together bonded atoms get at equilibrium?
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What is a covalent bond? Why do they form?
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What is an ionic bond? Why do they form?
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What is a bond that has mixed covalent-ionic character? Why do they form?
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What is a metallic bond? Why do they form?
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When atoms bond, what happens to their electron density compared to if they were not bonded? How are covalent and ionic bonds different in terms of the electron density change?
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What is electronegativity? What causes an atom to have high or low electronegativity?
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Why is an atom with a completely filled valence shell stable/unreactive?
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When a bond is formed, is energy released or is it required as input? What about when a bond is broken?