Atomic structure. 2.0 / 5 based on 2 ratings ? ScienceAtomsGCSEAQA Created by: Holly StearCreated on: 28-03-13 18:01 What does the nucleus contain? Protons and neutrons. 1 of 13 What orbits the nucleus? Electrons. 2 of 13 What charge do protons have? Positive. 3 of 13 What charge do electrons have? Negative. 4 of 13 what charge do neutrons have? None. 5 of 13 What equals the same amount of number in an atom? Electrons and protons. 6 of 13 What is the atomic number? Total number of protons and the total number od electrons. 7 of 13 How are elements arranged in the periodic table? In order of their atomic number? 8 of 13 What are in energy levels? Electrons. 9 of 13 What are energy levels represented by? Shells. 10 of 13 What energy level is closest to the nucleus? Lowest. 11 of 13 How many shells can the first energy level hold? Two. 12 of 13 How many shells can the second and third hold? Eight. 13 of 13
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