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Chemistry 14 Online
OpenStudy (anonymous):

1. The atomic number of Aluminum is 13. This means Aluminum has 13 of these. A. Protons B. Orbitals C. Neutrons D. Energy levels 2. The mass of an atom is the sum of the number of _____ and _____. A. Protons and electrons B. Protons and neutrons C. Neutrons and electrons D. Neutrons and energy levels

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