Elements, mixtures and compounds (AQA GCSE Chemistry): Flashcards

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Elements, mixtures and compounds
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Atom

Smallest part of an element that can exist

Element

Substance made of only one type of atom

Number of different elements

About 100

Chemical symbols always start with...

A capital letter

Compound

Atoms of different elements chemically bonded together

Minimum elements in a compound

Two or more different elements

H2OH_2O composition

2 hydrogen atoms and 1 oxygen atom

Mixture

Two or more substances not chemically bonded

Bonding in compounds vs mixtures

Compounds: bonded; Mixtures: not bonded

Method to separate mixtures

Physical methods (e.g., using a magnet)

How to separate elements in a compound

Need a chemical reaction

Properties of mixture components

Keep their original properties

Where all elements are shown

Periodic table

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Simple Model of the Atom

The Periodic Table

Properties of Transition Metals

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Simple Model of the Atom

The Periodic Table

Properties of Transition Metals

Explore AQA GCSE Chemistry Quizzes by Topics

Simple Model of the Atom

The Periodic Table

Properties of Transition Metals

Explore AQA GCSE Chemistry Exam Questions by Topics

Simple Model of the Atom

The Periodic Table

Properties of Transition Metals

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