Transition Elements Quiz
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5 questions, one answer each
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1. Which of the following is a typical property of transition elements?
- A. Low density and low melting point
- B. High density and high melting point
- C. Extremely high reactivity
- D. They are all non-metals
2. What does it mean for an element to have variable oxidation numbers?
- A. It can form ions with more than one possible charge
- B. It always has the same charge in every compound
- C. It cannot form ions at all
- D. It only forms negative ions
3. Which pair of ions correctly represents iron's variable oxidation numbers?
- A. Fe+ and Fe2+
- B. Fe2+ and Fe3+
- C. Fe3+ and Fe4+
- D. Fe- and Fe2-
4. Which statement correctly compares transition elements with Group I alkali metals?
- A. Transition elements are more reactive and less dense than Group I metals
- B. Transition elements are less reactive and denser than Group I metals
- C. Both groups have identical reactivity and density
- D. Group I metals form coloured compounds; transition elements do not
5. A student is given data showing that transition element M forms both a green compound (MCl2) and a yellow compound (MCl3). What does this suggest about element M, and why is this typical of transition elements?
- A. M is a Group I metal, because it forms coloured compounds
- B. M has variable oxidation numbers (2+ and 3+) and forms coloured compounds, both typical transition element behaviours
- C. M cannot be a transition element, because it forms two different compounds
- D. M must be a noble gas, since it does not react further