The false statement about lithium is:
Correct answer: A. It is softer than other alkali metals
- A. It is softer than other alkali metals
- B. It is least reactive
- C. It possesses higher melting and boiling points
- D. It forms chloride which is soluble in alcohol
Explanation
Lithium is actually harder than the other alkali metals (it can even scratch glass), while the others are very soft. So the statement "It is softer than other alkali metals" is false.
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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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