Atomic structure for AQA GCSE Physics
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This presentation discusses atomic structure, including that atoms have a small, central nucleus composed of protons and neutrons which is surrounded by electrons. The nucleus contains positively charged protons and neutral neutrons of similar size, while electrons are much smaller and negatively charged. An atom's number of protons equals its number of electrons, giving it an overall neutral charge, though atoms can gain or lose electrons to form ions. Isotopes are atoms with the same number of protons but different numbers of neutrons.
Atomic structure for AQA GCSE Physics
- 1. This presentation is all about atomic structure
- 3. Basic Structure is a small central nucleus composed of protons and neutrons Neutrons Protons
- 4. The nucleus is surrounded by electrons
- 5. Protons have a positive charge, electrons have a negative charge and neutrons have no charge
- 6. Protons and neutrons are a similar size. Electrons are much smaller
- 7. In an atom the number of protons = the number of electrons
- 8. The atoms has overall no electrical charge
- 9. Atoms may lose or gain electrons to form ions
- 10. Isotope of an element
- 11. Isotopes ¨C atoms have same numbers of protons but can have a different number of neutrons
- 12. The total number of protons in an atom is called the atomic number
- 13. The total number of protons and neutrons is called its mass number