1) The electron arrangement of the element with atomic number 15 a) Phosphorus b) 2,8,5 c) 5,8,2 d) 2.1 e) P 2) The electron arrangement of Oxygen a) 2,6 b) 8,2 c) 2,8,8,2 d) O 3) The electron arrangement of Sodium a) Na b) 23 c) 2,8,2 d) 2,8,1 4) The electron arrangement of Hydrogen a) 0,1 b) H c) 1 d) 2,8,1 5) The electron arrangement of the element with with the symbol Al a) 2,8,4 b) 2,8,3 c) Aluminium d) Proton 6) The electron arrangement of the element in Group 4 and Period 3. a) 4,3 b) 2,4,3 c) 2,8,4 d) Nucleus 7) The electron arrangement of the element with the symbol K. a) 2,8,8,1 b) 39 c) 2,8,1 d) Electron 8) The electron arrangement of the element that makes your voice squeaky! a) 2,8,1 b) 2 c) 4 d) Helium 9) The electron arrangement of Nitrogen. a) 2,5 b) 14 c) 17 d) 2,7 10) The electron arrangement of the element found in Group 2 Period 2 a) 2 b) 2,2,8 c) 2,2 d) Be 11) The electron arrangement of the element with atomic number 20 a) 2,8 b) 2,8,8,2 c) Calcium d) Proton 12) The electron arrangement of the third noble gas. a) 2,8 b) 2,8,8 c) 28 d) Argon 13) The electron arrangement of Lithium. a) Li b) 2,1 c) 2,5 d) 7 14) The electron arrangement of the element in Period 2 and Group 3 a) 3,2 b) 2,3 c) Aluminium d) 9 15) The electron arrangement of the first halogen. a) 2,7 b) 10 c) 2,8,7 d) F 16) The electron arrangement of a noble gas found in street lights. a) 2,8 b) 2,8,8 c) Neon d) Ne 17) The electron arrangement of the element with the symbol S a) 2,8,4 b) 2,8,6 c) 2,9 d) 32 18) The electron arrangement of Magnesium. a) 2,8,8,6 b) Mg c) 2,8,2 d) Electron shell 19) The electron arrangement of the element in period 2 and group 4 a) 6 b) 2,8,4 c) 2,4 d) 14 20) The electron arrangement of Chlorine a) 2,8,8,7 b) Bleach c) 17 d) 2,8,7

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