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#fluoride

2 public questions tagged with this topic.

Genesis of Periodic Classification - Dobereiner Newlands Mendeleev

Which of the following fluorides has the highest ionic character?

Ionic character increases with larger cation size and lower polarizing power in group 2. BaF₂ (Ba²⁺, largest) has the highest ionic character among BeF₂, MgF₂, CaF₂, and BaF₂.

Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Genesis of Periodic Classification - Dobereiner Newlands Mendeleev

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Genesis of Periodic Classification - Dobereiner Newlands Mendeleev

Which ion among the following isoelectronic species with 36 electrons has the highest lattice energy when paired with F⁻

For isoelectronic species (36 electrons), lattice energy increases with charge. Sc³⁺ (Z=21, +3) forms ScF₃ with the highest lattice energy compared to K+, Ca²⁺, or Br⁻.

Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Genesis of Periodic Classification - Dobereiner Newlands Mendeleev

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