Year 8 Elements

A table that organises most of the known elements and provides a wealth of information.

A row across the Periodic table

The properties of a substance that can be observed or examined without changing the composition

A particle made up of two or more different types of atoms. Eg water H20, carbon dioxide CO2

colour, hardness, density, melting point, boiling point are examples of

A particle that contains one type of atom. Examples: oxygen (O2), hydrogen (H2)

A column down the Periodic table

I am the Russian Chemist who in 1869 published the first version of the Periodic table

The attempt to turn base metals into precious metals like gold

A letter (or letters) of the alphabet used to represent an atom of a specific element. Eg H, He

The smallest part of an element that still retains the properties of that element.

A substance made up of different types of particles in no fixed ratio

A collection of symbols and numbers that represent the number and type of atoms in a particle.

A particle that contains only one type of atom. Example: gold Au, silver Ag, carbon C,

The smallest particle of a substance that is capable of separate existence. Eg oxygen O2, CO₂

A substance made up of the same type of particles