logo

Learning objective

Recognize that: (a) noble gases in Group VIII have a complete outer electron shell, (b) the number of outer shell electrons corresponds to the group number for Groups I to VII, and (c) the number of occupied electron shells matches the period number.

Read the explanation, check the common trap, then practise with flashcards and questions.

Practise this topicRead the exam answerTopic hub

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE ChemistryAtoms, elements and compoundsCore content

Study support

Understand this objective

Quick explanation

Recognize that: (a) noble gases in Group VIII have a complete outer electron shell, (b) the number of outer shell electrons corresponds to the group number for Groups I to VII, and (c) the number of occupied electron shells matches the period number

  • This point belongs to Atomic structure and the Periodic Table, especially Atomic structure and the Periodic Table outcomes.
  • You need to be able to recognize that: (a) noble gases in Group VIII have a complete outer electron shell, (b) the number of outer shell electrons corresponds to the group number for Groups I to VII, and (c) the number of occupied electron shells matches the period number.
  • The key ideas to know are State.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

State

Why it matters

This objective helps connect Atomic structure and the Periodic Table outcomes to exam-style questions, flashcards, and revision notes for Atomic structure and the Periodic Table.

Revision tools

Choose how to practise

Back to topic hub
Flashcards10 linked cards

Flashcard 1 of 10

Press Space to flip, arrows to move
Practice Questions7 linked questions

Question 1 of 7

Choose an answer, get feedback, then move sideways through the set.

0 of 5 attempted

Paper 3 structured question: Atomic structure and the Periodic Table

Paper 3Theory (Core)1 marks

Description

Electron Configuration in the Periodic Table

The periodic table is organized into groups and periods. Noble gases are in Group VIII, while Groups I to VII have varying numbers of outer shell electrons. The period number indicates the number of occupied electron shells.

  1. a

    State the number of outer shell electrons in Group III elements.

    Aim for approximately 1 distinct marking point.

    [1]
Revision notestopic notes

Open the full topic revision notes when you are ready to review this objective in context.

Open revision notes

Related learning objectives

Revision hubs

Move back to a broader study route

Cambridge IGCSEChemistry resources