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Social Security was established
Orbital Paths
Paths in space along which objects such as planets, moons, and satellites travel around another body.
Electron Shells
Electron shells are layers of electrons that surround the nucleus of an atom, where each shell has a different energy level.
Silicon
A chemical element with the symbol Si, known for its semiconductor properties and used extensively in electronic devices.
Anions
Negatively charged ions that are formed when an atom gains one or more electrons, commonly found in various chemical reactions and solutions.
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