Learning objective
Describe the trend in relative molecular mass down Group 7.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Flashcards
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Topic
The periodic table
Subtopic
Group 7
Study support
Understand this objective
Quick explanation
Describe the trend in relative molecular mass down Group 7
- This point belongs to The periodic table, especially Group 7.
- You need to be able to describe the trend in relative molecular mass down Group 7.
- The key ideas to know are Group 7.
- 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 7 to exam-style questions, flashcards, and revision notes for The periodic table.
Quick student answer
How does trend in relative molecular mass down Group 7 work?
Direct answer
In Chemistry, this page helps you answer questions about trend in relative molecular mass down Group 7 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 relative molecular mass and Group 7.
Key terms
- relative molecular mass: The mass of a molecule relative to the mass of one twelfth of a carbon-12 atom.
- Group 7: The group in the periodic table that contains the halogens, characterized by their diatomic molecular forms and trends in reactivity.
Common trap
Relative Molecular Mass Confusion: Focus on understanding that relative molecular mass increases due to the addition of more atoms and their respective masses, while atomic number relates to the number of protons.
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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