English National Curriculum - Science

Development of the Periodic Table

Mission Objectives

Identify the significant groups of the periodic table

Describe how the elements are arranged in groups and periods in the periodic table

Explain how and why the ordering of elements has changed over time

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Keywords

Words and meanings to learn

Mendeleev

a Russian chemist who is best known for creating the first widely recognised periodic table of elements

periodic table

a tabular arrangement of elements in order of increasing atomic number

atomic mass

the average mass of an atom of an element, taking into account the relative abundance of each isotope

Newlands

an English chemist who proposed the Law of Octaves, an early attempt to classify elements

groups

columns on a periodic table, elements in the same group have similar chemical properties

This lesson has been written by

Samantha Batch

Samantha is an accomplished science educator whose current work centres on curriculum design and professional development, supporting teachers to deliver high-quality science education through evidence-informed approaches. She is a former Head of Chemistry and Sixth Form Tutor with extensive Key Stage 4 and 5 experience, and has worked as an AQA examiner, giving her valuable insight into assessment standards and what students need to succeed.

Underpinning this is a strong foundation in applied science built across a range of industry roles. Samantha has held scientific roles at John Smith's Brewery, Yorkshire Water and WasteCare, where she led technical projects, drove operational efficiencies and ensured compliance with industry standards. Across these roles she has first-hand experience of how scientific knowledge translates into measurable outcomes in professional and commercial environments.

In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket. 

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