Learning objective
Explain that Group 1 elements have one electron in their outer shell.
Read the explanation, check the common trap, then practise with flashcards and questions.
At a glance
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Flashcards
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Questions
Topic
The periodic table
Subtopic
Group 1
Study support
Understand this objective
Quick explanation
Explain that Group 1 elements have one electron in their outer shell
- This point belongs to The periodic table, especially Group 1.
- You need to be able to explain that Group 1 elements have one electron in their outer shell.
- The key ideas to know are Group 1.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Group 1 to exam-style questions, flashcards, and revision notes for The periodic table.
Quick student answer
How do you explain group 1 elements have one electron in their outer shell?
Direct answer
In Chemistry, this page helps you answer questions about group 1 elements have one electron in their outer shell within The periodic table. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are Group 1 elements and outer shell.
Key terms
- Group 1 elements: Elements in the first column of the periodic table, known as alkali metals, that have one electron in their outer shell.
- outer shell: The highest energy level of electrons in an atom, which determines the chemical properties of an element.
Common trap
Misunderstanding Outer Electrons: Remember that Group 1 elements, such as lithium, sodium, and potassium, each have exactly one electron in their outer shell.
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Revision notestopic notes
Open the full topic revision notes when you are ready to review this objective in context.
Open revision notesRelated learning objectives
- Describe how elements are arranged in order of atomic number in the modern periodic table.
The periodic table
- Explain that columns in the periodic table are called groups.
The periodic table
- Explain that elements in the same group have the same number of outer-shell electrons.
The periodic table
- Explain how outer-shell electrons give elements in the same group similar chemical properties.
The periodic table
- Explain how the position of an element in the periodic table relates to electron arrangement and atomic number.
The periodic table