IB CHEMISTRY

Back to Topic 3.1
RevisionFlashcards

Structure 3.1: High Yield Flashcards

Test your recall of key definitions and trend logic.

Concept

Trend: Radius across Period

Answer
Decreases (ZeffZ_{eff} increases, pulling shell closer).
Concept

Trend: IE down Group

Answer
Decreases (Shielding increases, outer e- further away).
Concept

Isoelectronic Series Trend

Answer
More protons (ZZ) = Smaller Radius.
Concept

Why is AlAl IE < MgMg IE?

Answer
Al electron removed from 3p (higher energy/shielded by 3s).
Concept

Why is SS IE < PP IE?

Answer
Spin-pair repulsion in the 3p orbital of S.
Concept

Amphoteric Oxide Example

Answer
Al2O3Al_2O_3 (Reacts with both HCl and NaOH).
Concept

Definition: Transition Metal

Answer
Atom or stable ion with incomplete d-subshell.
Concept

Why is Zn not Transition?

Answer
Atom (d10d^{10}) and Ion (d10d^{10}) have full d-shells.
Concept

Origin of Color in Complexes

Answer
d-d transitions (electron promotion across split d-orbitals).
Concept

Spectrochemical Series

Answer
Ligands ordered by splitting strength (ΔE\Delta E).