Melting and boiling points depend on_?
Correct answer: A. Number of electrons
- A. Number of electrons
- B. Number of neutrons
- C. Number of paired electrons
- D. Number of protons
Explanation
Melting and boiling points generally increase with the number of electrons, because more electrons lead to stronger London dispersion (van der Waals) forces, resulting in higher melting/boiling points.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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