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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.

    In a neutral atom, which two particles must be present in equal numbers?

    A.

    Protons and neutrons

    B.

    Neutrons and electrons

    C.

    Protons and electrons

    D.

    Nucleons and electrons

  2. 2.

    Which statement about the Rutherford experiment is true?

    A.

    It proved the plum pudding model was correct

    B.

    It showed the atom is mostly empty space

    C.

    It discovered the electron

    D.

    It proved neutrons exist in the nucleus

  3. 3.

    Which of the following identifies an atom with 20 protons and 20 neutrons?

    A.

    40Zr^{40}\text{Zr}

    B.

    40Ca^{40}\text{Ca}

    C.

    20Ca^{20}\text{Ca}

    D.

    20Ne^{20}\text{Ne}

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.

    Which neutral element in the third period (n = 3) has exactly 4 valence electrons?

    A.

    Carbon

    B.

    Silicon

    C.

    Germanium

    D.

    Tin

  2. 2.

    Which subshell is filled immediately after the 3s3s subshell?

    A.

    3p3p

    B.

    3d3d

    C.

    4s4s

    D.

    2p2p

  3. 3.

    Which statement correctly compares a 2s2s orbital and a 3s3s orbital?

    A.

    The 3s3s orbital is smaller

    B.

    The 3s3s orbital is at a higher energy level

    C.

    The 2s2s orbital can hold more electrons

    D.

    The 2s2s orbital is dumbbell shaped

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

Atomic Structure - IB Grade 11 Chemistry Notes & Revision | Krit.club