Subject: General Science
Book: NCERT Chemistry Class 11
Elements are arranged in the periodic table based on properties.
- **Periodic Table Development**:
- Mendeleev’s Periodic Law.
- Modern Periodic Law (Moseley).
- **Periodic Trends**:
- Atomic Radius, Ionization Energy, Electronegativity.
- **Importance of Periodic Table**:
- Predicts element properties and chemical behavior.
**Possible Exam Questions:**
1. How did Mendeleev arrange elements in the periodic table?
2. What are periodic trends? Explain with examples.
3. How does atomic radius change across periods and groups?
4. Define ionization energy and its variations in the periodic table.
5. Discuss the modern periodic law.
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