Which statement is incorrect?
Correct answer: A. All the metals are good conductors of electricity
- A. All the metals are good conductors of electricity
- B. Non-metals have high ionization energies
- C. Alkali metals have low melting points
- D. Halogens are highly reactive non-metals
Explanation
Some metals, like Bismuth and Mercury, are poor conductors of electricity. Although most metals are indeed good conductors, the statement "all metals" is not universally true.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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