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Q: The amount of energy required to move an electron from one energy level to the next higher one is known as: A. mass number B. quantum of energy C. Aufbau principle D. atomic number
A: According to the Aufbau Principle, electrons fill orbitals starting at the lowest available (possible) energy states before filling higher states (e.g. 1s before 2s).
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User: An atom of an element with atomic number 48 and mass number 120 contains A. 48 protons, 48 electrons, and 72 neutrons. B. 72 protons, 48 electrons, and 48 neutrons. C. 120 protons, 48 electrons, and 72 neutrons. D. 72 protons, 72 electrons, and 48 neutrons.

User: The amount of energy required to move an electron from one energy level to the next higher one is known as: A. mass number B. quantum of energy C. Aufbau principle D. atomic number

Weegy: According to the Aufbau Principle, electrons fill orbitals starting at the lowest available (possible) energy states before filling higher states (e.g. 1s before 2s).
andrewpallarca|Points 20863|

User: The amount of energy required to move an electron from one energy level to the next higher one is known as: A. mass number B. quantum of energy D. atomic number

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Asked 4/2/2013 8:52:53 AM
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