ATOMS

Atoms

Atoms and elements are the building blocks of chemistry. Atoms contain protons, neutrons and electrons. When elements react they produce compound

What are atoms?

• All substances are made of atoms.
• A substance that is made of only one sort of atom is called an element.
• Atoms have a small central nucleus, which is made up of protons and neutrons and around which there are electrons

All about elements

• There are about 100 different elements.
• Elements are shown in the periodic table.
• The groups contain elements with similar properties.
• The zig zag line seperates the metals on the left and the non- metals on the right (Hydrogen is a non metal!)
• Atoms of each element are represented by a chemical symbol, eg O represents an…