NCERT Solutions for class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Properties are provided in this article. Some of the important topics in Classification of Elements and Periodicity in Properties chapter include:
- Periodic Classification
- Newland’s Law of Octaves
- Periodic Classification of Elements
- D Block elements
- Ionic Radius
- Electronegativity
- Electron Gain Enthalpy
Expected no. of questions: 2 to 4 questions of total 6 marks.
Download PDF: NCERT Solutions for Class 11 Chemistry Chapter 3 PDF
NCERT Solutions for Class 11 Chemistry Chapter 3
NCERT Solutions for Class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Properties is given below.
Class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Properties –Important Topics
Some of the classification of elements done by scientist before the origin of periodic table were as follows.
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Dobereriener’s Triads: Three elements have same physical and chemical properties were grouped together and arranged in a form of an increasing atomic mass.
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Newlands Law Of Octaves: This law states that whenever elements are arranged in ascending atomic masses, then the eighth and the first element will show the same property and this law is even similar to a musical note.
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Mendeleev’s Periodic Table: This periodic table is arranged based on the increasing amount of atomic masses of elements.
According to modern periodic table, elements can be classified into four types.
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Periodic Trends in Properties of Elements is determined by:
- Atomic Radius
- Ionization Energy
- Electronegativity
- Valency
- Metallic Characteristics of an Element
- Non-metallic property of an Element
- Reactivity of Element
- Melting & Boiling Points of Element
Chapter Related Articles:
| Ionization Enthalpy | Triads | Transuranium Elements |
| Electronic Configuration | Germanium | Anion |
| Moseley’s Law | Periodicity | Modern Periodic Table |
Chemistry Related Articles:
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