krit.club logo

Atomic Structure

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

The nuclear atom

Subtopic

The nuclear atom under Atomic Structure for Grade 11 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which subatomic particle's discovery proved that atoms were not indivisible?

    A.

    Proton

    B.

    Neutron

    C.

    Electron

    D.

    Alpha particle

  2. 2.

    What is the atomic number of an atom with 20 protons and 20 neutrons?

    A.

    20

    B.

    40

    C.

    0

    D.

    40.08

  3. 3.

    Which isotope of Carbon is used as the standard for the unified atomic mass unit?

    A.

    Carbon-11

    B.

    Carbon-12

    C.

    Carbon-13

    D.

    Carbon-14

Download the worksheet for Atomic Structure - The nuclear atom to practice offline. It includes additional chapter-level practice questions.

Electron configuration

Subtopic

Electron configuration under Atomic Structure for Grade 11 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Identify the element with the electron configuration [Ar]4s23d104p1[Ar] 4s^{2} 3d^{10} 4p^{1}.

    A.

    Gallium

    B.

    Germanium

    C.

    Aluminum

    D.

    Indium

  2. 2.

    Which of these is the correct electron configuration for the Aluminum ion (Al3+Al^{3+})?

    A.

    1s22s22p63s23p11s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{1}

    B.

    1s22s22p61s^{2} 2s^{2} 2p^{6}

    C.

    1s22s22p63s21s^{2} 2s^{2} 2p^{6} 3s^{2}

    D.

    1s22s22p31s^{2} 2s^{2} 2p^{3}

  3. 3.

    How many electrons are in the 4s4s subshell of a neutral Calcium atom (Z=20Z = 20)?

    A.

    1

    B.

    2

    C.

    0

    D.

    10

Download the worksheet for Atomic Structure - Electron configuration to practice offline. It includes additional chapter-level practice questions.

Electrons in atoms (HL)

Subtopic

Electrons in atoms (HL) under Atomic Structure for Grade 11 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.
    1. Electrons in atoms (HL): practice question 1 for Atomic Structure?
    A.

    Option A

    B.

    Option B

    C.

    Option C

    D.

    Option D

  2. 2.
    1. Electrons in atoms (HL): practice question 2 for Atomic Structure?
    A.

    Option A

    B.

    Option B

    C.

    Option C

    D.

    Option D

  3. 3.
    1. Electrons in atoms (HL): practice question 3 for Atomic Structure?
    A.

    Option A

    B.

    Option B

    C.

    Option C

    D.

    Option D

Download the worksheet for Atomic Structure - Electrons in atoms (HL) to practice offline. It includes additional chapter-level practice questions.