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Periodicity

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Periodic table

Subtopic

Periodic table under Periodicity for Grade 12 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which equation correctly represents the first electron affinity of bromine?

    A.

    Br(g)+e−→Br−(g)Br(g) + e^- \to Br^-(g)

    B.

    Br2(l)+2e−→2Br−(g)Br_2(l) + 2e^- \to 2Br^-(g)

    C.

    Br(s)+e−→Br−(g)Br(s) + e^- \to Br^-(g)

    D.

    Br+(g)+e−→Br(g)Br^+(g) + e^- \to Br(g)

  2. 2.

    What is the general trend for the first ionization energy as you move down Group 17 (the halogens)?

    A.

    It increases due to the increasing atomic number.

    B.

    It decreases because the outer electrons are further from the nucleus and more shielded.

    C.

    It stays the same because the outer shell always has seven electrons.

    D.

    It increases because the electronegativity of the elements increases.

  3. 3.

    Which of the following elements is classified as a metalloid (semimetal) in the periodic table?

    A.

    Aluminum (AlAl)

    B.

    Silicon (SiSi)

    C.

    Phosphorus (PP)

    D.

    Sulfur (SS)

Download the worksheet for Periodicity - Periodic table to practice offline. It includes additional chapter-level practice questions.

Periodic trends

Subtopic

Periodic trends under Periodicity for Grade 12 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following arrangements correctly lists the isoelectronic ions in order of increasing ionic radius?

    A.

    O2−<F−<Na+<Mg2+O^{2-} < F^{-} < Na^{+} < Mg^{2+}

    B.

    Mg2+<Na+<F−<O2−Mg^{2+} < Na^{+} < F^{-} < O^{2-}

    C.

    Na+<Mg2+<O2−<F−Na^{+} < Mg^{2+} < O^{2-} < F^{-}

    D.

    F−<O2−<Mg2+<Na+F^{-} < O^{2-} < Mg^{2+} < Na^{+}

  2. 2.

    In the context of periodic trends, which statement regarding Group 1 elements (alkali metals) is correct as the atomic number increases?

    A.

    First ionization energy increases

    B.

    Electronegativity increases

    C.

    Melting point increases

    D.

    Atomic radius increases

  3. 3.

    Which species has the highest value for its first ionization energy?

    A.

    Lithium (LiLi)

    B.

    Neon (NeNe)

    C.

    Helium (HeHe)

    D.

    Fluorine (FF)

Download the worksheet for Periodicity - Periodic trends to practice offline. It includes additional chapter-level practice questions.

First-row d-block elements (HL only)

Subtopic

First-row d-block elements (HL only) under Periodicity for Grade 12 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following are characteristic physical properties of first-row transition elements? I. High electrical conductivity II. High melting points III. Low density compared to Group 1 metals

    A.

    I and III only

    B.

    II and III only

    C.

    I and II only

    D.

    I, II, and III

  2. 2.

    Which metal is used as a catalyst in the Haber process for the synthesis of ammonia?

    A.

    Iron (FeFe)

    B.

    Vanadium(V) oxide (V2O5V_2O_5)

    C.

    Nickel (NiNi)

    D.

    Platinum (PtPt)

  3. 3.

    What is the correct ground-state electron configuration of a Chromium (CrCr) atom?

    A.

    [Ar]4s23d4[Ar] 4s^2 3d^4

    B.

    [Ar]4s13d5[Ar] 4s^1 3d^5

    C.

    [Ar]4s23d5[Ar] 4s^2 3d^5

    D.

    [Ar]3d6[Ar] 3d^6

Download the worksheet for Periodicity - First-row d-block elements (HL only) to practice offline. It includes additional chapter-level practice questions.

Colored complexes (HL only)

Subtopic

Colored complexes (HL only) under Periodicity for Grade 12 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    In the context of coordination chemistry, what role does a ligand play when it bonds to a central metal ion?

    A.

    Brønsted-Lowry acid

    B.

    Lewis acid

    C.

    Reducing agent

    D.

    Lewis base

  2. 2.

    Which of the following aqueous ions is colorless?

    A.

    Zn2+Zn^{2+}

    B.

    Cu2+Cu^{2+}

    C.

    Fe3+Fe^{3+}

    D.

    Cr3+Cr^{3+}

  3. 3.

    If a solution of a transition metal complex appears orange to the eye, which color of light is it most likely absorbing from the visible spectrum?

    A.

    Red

    B.

    Blue

    C.

    Yellow

    D.

    Green

Download the worksheet for Periodicity - Colored complexes (HL only) to practice offline. It includes additional chapter-level practice questions.

Periodicity - IB Grade 12 Chemistry Notes & Revision | Krit.club