8) Complete the following table: Symbol Number Number Number Name of of Atomic Mass Overall of of of Element Atom Number Number Charge Protons Neutrons Electrons or Ion a beryllium Br 4 9 4 5 4 0 b fluorine F- 9 19 9 10 10 1- c iron Fe3+ 26 56 26 30 23 3+ d selenium Se2- 34 79 34 45 36 2- 9) Write the full electron configuration for each of the following atoms: a) strontium 1s22s22p63s23p64s23d104p65s2 b) germanium 1s22s22p63s23p64s23d104p2 10) Write the shorthand electron configuration for each of the following atoms: a) silicon [Ne]3s23p2 b) molybdenum [Kr]5s24d4 c) terbium [Xe]6s24f9 d) gold [Xe]6s24f145d9 e) seaborgium [Rn]7s25f146d4 11) Draw orbital diagrams for each of the following ions (shorthand), indicate which electrons have been gained/lost: a) Cu+ 4s 3d ↑ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ b) Pb2+ 6s 5d 6p ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑ ↑ c) Br– 4s 3d 4p ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ d) Sb3– 5s 4d 5p ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓
8) Complete the following table: Name of Element Symbol of Atom or Ion Atomic Number Mass Number Number of Protons Number of Neutrons Number of Electrons Overall Charge a beryllium Br 4 9 4 5 4 0 b fluorine F- 9 19 9 10 10 1- c iron Fe3+ 26 56 26 30 23 3+ d selenium Se2- 34 79 34 45 36 2- 9) Write the full electron configuration for each of the following atoms: a) strontium 1s22s22p63s23p64s23d104p65s2 b) germanium 1s22s22p63s23p64s23d104p2 10) Write the shorthand electron configuration for each of the following atoms: a) silicon [Ne]3s23p2 b) molybdenum [Kr]5s24d4 c) terbium [Xe]6s24f9 d) gold [Xe]6s24f145d9 e) seaborgium [Rn]7s25f146d4 11) Draw orbital diagrams for each of the following ions (shorthand), indicate which electrons have been gained/lost: a) Cu+ 4s ↑ 3d ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ b) Pb2+ 6s ↑↓ 5d ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ 6p ↑ ↑ c) Br– 4s ↑↓ 3d ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ 4p ↑↓ ↑↓ ↑↓ d) Sb3– 5s ↑↓ 4d ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ 5p ↑↓ ↑↓ ↑↓
2_-_worksheets_-_answers_unit_1_atomic_structure_-grade_11_university_level.docx