Jeffrey M's List: Subatomic Science Project

• According to current theory, electrons are arranged  in energy levels around the nucleus. When electrons gain or lose energy, they  jump between energy levels as they are rotating around the nucleus
• as they lose energy, they might move back to the  second level or even to the first energy level. Only a certain number of  electrons can be in an energy level at the same time.
• Protons and neutrons are found in the nucleus. Circling around outside the  nucleus are tiny little particles called electrons. Electrons have a negative  charge. Electrons spin as they circle the nucleus billions of times every second
• moving so fast and the path that they travel is not the same each time
• if we could see these electrons, they might appear to  look like a cloud around the nucleus.

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• Neutrons have no electrical charge and are  said to help hold the protons together (protons are positively charged particles  and should repel each other).
• Protons have a positive electrical charge
• Protons and neutrons make up the nucleus of an  atom
• protons are identical to each other
• neutrons are identical to each other
• represented with the mark of a "+" sign
• Particles that are smaller than the atom are called subatomic particles. The  three main subatomic particles that form an atom are protons,  neutrons, and electrons
• The number of protons and neutrons in the nucleus give the atoms their specific  characteristics
• center of the atom is called the nucleus
• They would also like to have the same number of  electrons as they have protons in order to stay electrically balanced.

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