Old KS4 Science Curriculum - Science

3. Explore the development of the Periodic Table - John Newlands and Dimitri Mendeleev

Mission Objectives

Describe early attempts to arrange the elements into a periodic table

Explain why Dimitri Mendeleev's periodic table successfully predicted the properties of elements

Describe how the elements are arranged in the modern periodic table

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Keywords

Words and meanings to learn

element

A substance which is unable to be decomposed.

react

The process of something changing either physically or chemically.

potassium

Known as the symbol K in the periodic table, a soft silvery-white metal.

ion

A molecule or atom which has a net electrical charge due to the gain or loss of electrons.

noble

In relation to gas, the elements which make up Group 0 in the periodic table due to the belief that they cannot bond to other atoms.

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