This presentation is all about atomic structure

The Specification says………..

Basic Structure is a small central nucleus composed of protons and neutrons

Neutrons

Protons

The nucleus is surrounded by electrons

Protons have a positive charge, electrons have a negative charge and neutrons have no charge

Protons and neutrons are a similar size. Electrons are much smaller

In an atom the number of protons = the number of electrons

The atoms has overall no electrical charge

Atoms may lose or gain electrons to form ions

Isotope of an element

Isotopes – atoms have same numbers of protons but can have a different number of neutrons

The total number of protons in an atom is called the atomic number

The total number of protons and neutrons is called its mass number