Introduction
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are very small; typical sizes are around 100 picometers (a ten-billionth of a meter, in the short scale).
Atoms are small enough that attempting to predict their behavior using classical physics – as if they were billiard balls, for example – gives noticeably incorrect predictions due to quantum effects. Through the development of physics, atomic models have incorporated quantum principles to better explain and predict the behavior.
Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and typically a similar number of neutrons. Protons and neutrons are called nucleons. More than 99.94% of an atom's mass is in the nucleus. The protons have a positive electric charge, the electrons have a negative electric charge, and the neutrons have no electric charge. If the number of protons and electrons are equal, that atom is electrically neutral. If an atom has more or fewer electrons than protons, then it has an overall negative or positive charge, respectively, and it is called an ion.
Task
Process
1. How the atom usage is composed?
2. How the protons and neutrons are composed?
3. How are called the protons and neutrons?
4. How is composed every atom?
5. What happens if an atom has more or fewer electrons than protons and how is it called?
Evaluation
1. The atom usage is composed of various subatomic particles.
2. The protons and neutrons are composed to be equal of a number of them.
3. The protons and neutrons are called nucleons.
4. Every atom is composed of a nucleus and one or more electrons bound to the nucleus.
5. Then it has an overall negative or positive charge respectively and it is called an ion.
Conclusion
Thank you for your attention!
We hope that this material has helped you better understand the structure of an atom and it's usage.
Credits
https://www.youtube.com/watch?v=e0K2Qdc-fRw
the link of atomic structure by GCSE Physics Revision.