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ChemistryChemistry63 views·Updated May 15, 2026·2 pages

atomic structure history of the atom and periodic table trends

user profile picture
rosie@rosie.rosie.rosie

gave chemistry revision

1
of 2
Periodic table trends

Group-alkali metais
+reactivity increases down the group
-as we go down the group, no. of Shells increase
-showing ou
2
of 2
Periodic table trends

Group-alkali metais
+reactivity increases down the group
-as we go down the group, no. of Shells increase
-showing ou

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Stefan SiOS user

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Samantha KlichAndroid user

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ChemistryChemistry63 views·Updated May 15, 2026·2 pages

atomic structure history of the atom and periodic table trends

user profile picture
rosie@rosie.rosie.rosie

gave chemistry revision

1
of 2
Periodic table trends

Group-alkali metais
+reactivity increases down the group
-as we go down the group, no. of Shells increase
-showing ou

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2
of 2
Periodic table trends

Group-alkali metais
+reactivity increases down the group
-as we go down the group, no. of Shells increase
-showing ou

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.

Where can I download the Knowunity app?

You can download the app from Google Play Store and Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Most popular content: Periodic Trends

9
ChemistryChemistry

BTEC Applied Science Unit 1 Overview

Comprehensive resource for Year 12 students pursuing a Level 3 Diploma in Applied Science. This booklet covers essential topics including cell structure, chemical properties, and wave theory, providing clear explanations and key concepts to aid in your studies and exam preparation.

125,332122
BiologyBiology

BTEC APPLIED SCIENCE UNIT 1 EXAM TOPICS EXPLAINED

Info on all topics

1283330
ChemistryChemistry

Periodic Trends in Groups 2 & 7

Explore key concepts in A-level chemistry with this comprehensive overview of periodic trends, focusing on Group 2 (alkaline earth metals) and Group 7 (halogens). Understand redox reactions, ionization energy, atomic radius, and the reactivity of elements. Ideal for revision and exam preparation.

122,882160
ChemistryChemistry

Transition Metals & Periodicity

Explore key concepts in transition metals, periodicity, and group trends with this comprehensive summary. Understand oxidation states, catalytic properties, complex ion formation, and the reactivity of groups 2 and 7. Ideal for AQA A-Level chemistry students seeking to enhance their understanding of the periodic table and related chemical reactions.

1265529
ChemistryChemistry

Atomic Structure & Periodic Trends

Explore the fundamentals of atomic structure and the periodic table in this comprehensive study resource. Covering key concepts such as subatomic particles, atomic models, group properties, and separation techniques, this material is tailored for AQA GCSE Chemistry students. Includes detailed explanations, diagrams, and essential laboratory methods for effective learning.

113378
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Periodicity Trends Explained

Explore key concepts in periodicity for SQA Higher Chemistry, including ionization energy, electronegativity, atomic size, and bonding structures. This summary covers essential trends in the periodic table, such as the effects of nuclear charge and shielding on atomic properties, and the nature of intermolecular forces like hydrogen bonding and London dispersion forces.

S5822
ChemistryChemistry

Periodicity in Chemistry

Explore the key concepts of periodicity in chemistry, including trends in ionization energy, electron configuration, and the properties of metals, non-metals, and giant covalent structures. This comprehensive summary covers essential topics such as the structure of the periodic table, the significance of Mendeleev's contributions, and the characteristics of materials like graphene and silicon. Ideal for A-Level students preparing for exams.

122278
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Explore the key periodic trends in Higher Chemistry Unit 1, focusing on covalent radius, ionisation energy, and electronegativity. Understand how these properties change across periods and down groups, with detailed explanations and examples. Ideal for exam preparation and concept reinforcement.

S51003
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Periodic Table Insights

Explore the key concepts of the periodic table, including group trends, reactivity of alkali metals and halogens, properties of transition elements, and the stability of noble gases. This summary provides a comprehensive overview of atomic structure, periodic trends, and the historical development of the periodic table, essential for AQA GCSE Chemistry. Ideal for exam preparation and understanding chemical behavior.

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Explore comprehensive A-Level Sociology notes on the education system, covering key theories, policies, and sociological perspectives. This resource includes insights on marketisation, gender roles, cultural deprivation, and educational inequalities, providing a thorough understanding of how education shapes social stratification and individual achievement. Ideal for exam preparation and in-depth study.

12101,9513,036
SociologySociology

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Dive into an extensive overview of family dynamics, perspectives, and patterns in sociology. This resource covers key concepts such as family diversity, gender roles, marriage, and the impact of social policies on family structures. Perfect for A-Level Sociology students preparing for Paper 2.

1271,5982,281
English LiteratureEnglish Literature

An Inspector Calls: Character Insights

Explore in-depth analysis and key quotes for characters in J.B. Priestley's 'An Inspector Calls'. This resource covers Gerald Croft, Inspector Goole, Sheila Birling, Mrs. Birling, Eric Birling, and Eva Smith, focusing on themes of class, gender roles, and social responsibility. Ideal for students aiming for Grade 8 and above.

1025,049896
CriminologyCriminology

Criminology: Crime & Punishment Overview

Comprehensive mindmaps covering key concepts in the Crime and Punishment topic for WJEC Criminology Unit 4. This resource includes detailed insights into the Criminal Justice System, crime prevention strategies, sentencing models, and the roles of various agencies. Ideal for A-Level revision, ensuring you grasp essential theories and legislative processes to excel in your exams.

1251,7131,025
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126,396118
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129,732211
English LiteratureEnglish Literature

Romeo and Juliet: Key themes

Key Romeo and Juliet themes and analysed quotes

106,561193
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Macbeth: Guilt and Ambition

Explore the complex themes of guilt and ambition in Shakespeare's 'Macbeth'. This analysis covers key characters, including Macbeth and Lady Macbeth, their moral dilemmas, and the tragic consequences of their ambition. Ideal for students studying character motivations, thematic elements, and the psychological impact of power. Includes insights on the natural order, manipulation, and the descent into madness.

918,657387
BiologyBiology

AQA Biology: Key Concepts

Explore essential AQA Biology topics including Photosynthesis, Respiration, Homeostasis, Genetics, and Ecology. This comprehensive knowledge organizer covers key concepts such as energy transfer, hormonal control, and genetic variation, providing a solid foundation for your studies. Ideal for exam preparation and understanding biological processes.

108,325295

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5App Store
4.7/5Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan SiOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha KlichAndroid user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

AnnaiOS user