Salma Ahmed
English Lit. GCSE Student
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Describe the experiment, which led to the modern-day theory of the structure of the atom.
- Words:
- 732
- Submitted:
- Fri Nov 05 2004
Have a little read: ... Chemistry Assignment #1 Describe the experiment, which led to the modern-day theory of the structure of the atom. An atom is the smallest particle that an element can be broken down into, which still retains all the properties, of the element itself. All substances are made from matter and all matter is made up of atoms. Today, in science, it is believed that atoms contain three inner particles: electrons, protons and neutrons. Protons are thought to possess positive charges and are located in the nucleus of the atom, along with neutrally charged neutrons. This nucleus is thought to be at the centre of the atom and is also thought to be responsible for 99.97% of the mass of the atom. Electrons are thought to be negatively charged species, which orbit the nucleus in shells. Figure #1 shows the model of the atom accepted today. This modern-day theory of the structure of the atom is
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