Molecules of Elements

Elements are made up of just one type of atom. However, the atoms can be arranged in different ways:

Atoms in Elements

• Single atoms

• In clusters of atoms called molecules

• In large grid-like structures called lattices

In molecular elements, all the molecules are identical with the same shape, size, number and type of atom. They don't always have just two atoms - look at the buckyball!

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Each type of molecule has its own formula. The little number tells us how many there are.

Molecules of Elements

Lattices of Elements

Metallic Elements: Strong and solid at room temperature. The layers can slide over each other which means they can be bent. Nearly all metal elements form lattices.

Non-Metallic Elements: Can vary in shape (some form layers while others form complex networks. This means they have different properties. Only a few exist as lattices.

Carbon is a non-metal that forms a lattice shape. It exists in a number of different forms though. Look at the difference between diamond and graphite which are both made of only carbon atoms.

Complete the worksheet and hand back to me

Activity: Identifying the Clauses

• The way the atoms are arranged

• How the arrangement of atoms relates to the difference between solids, liquids, and gases

​Show me when you're done!