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Electrons occupy the energy levels of an atom. The energy level of an atom exists in the electron cloud that surrounds the nucleus. The nucleus is home to the protons and neutrons of the atom. More »

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The main energy levels of an atom are indicated by the principal quantum numbers. This number, which illustrates the orbital size, describes the orbital energy of an atom indirectly. More »

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The number of electrons in the outermost energy level of a molybdenum atom is one. The electrons in the outermost energy level or shell determine the chemical properties of an atom. More »

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An atom is in a ground state when all of the electrons in an atom are at their lowest energy levels. In an excited state, electrons spread out to higher energy levels, and not all are in their lowest levels. More »

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The Bohr model for silver explains the number of electrons, protons and neutrons that are present in the atom, and it diagrams the placement of the electrons within silver’s five energy levels. Silver’s Bohr model indica... More »

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Electrons are found in parts of an atom called shells that cover different energy levels and are referred to by the letters K, L, M, N, O, P and Q. More »

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The Bohr model of the boron atom has a nucleus in the center and two energy levels, also known as shells, or orbitals, around the outside. Two electrons orbit the first energy levels and three orbit the second. Five prot... More »

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