Why Te have more melting and boiling point than Po
Polonium (Po) and Tellurium (Te) are two elements belonging to Group 16 of the periodic table. Despite being in the same group, they exhibit different melting and boiling points. Tellurium has higher melting and boiling points than Polonium. This can be attributed to several factors:
- Atomic size: Tellurium has a larger atomic size than Polonium. The larger atomic size results in weaker interatomic forces, requiring more energy to overcome and melt or boil the substance.
- Metallic bonding: Polonium has a more metallic character than Tellurium. Metallic bonding involves the sharing of mobile electrons, which weakens the overall interatomic forces. This makes Polonium more likely to melt or boil at lower temperatures.
- Electronegativity: Tellurium has a higher electronegativity than Polonium. Electronegativity measures the attraction of an atom for electrons. The higher electronegativity of Tellurium indicates a greater attraction for electrons, leading to stronger interatomic forces.
- Crystal structure: Tellurium exists in a more stable crystalline structure than Polonium. The stable crystal structure requires more energy to break apart, resulting in higher melting and boiling points.
Related Questions and Answers
- What is the melting point of Polonium? 254°C (489°F)
- What is the boiling point of Tellurium? 1390°C (2534°F)
- Why does Tellurium have a higher electronegativity than Polonium? Tellurium has a smaller atomic size and more protons, leading to a stronger attraction for electrons.
- What type of bonding is found in Polonium? Metallic bonding
- What is the crystal structure of Tellurium? Trigonal crystal structure
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