(10/west 4.4 4.4.1 Calcium reacts with chlorine to form calcium chloride. Draw the Aufbau diagram for a calcium ion. 4.4.2 Write down the chemical symbols of the particles found in the calcium chloride crystal lattice. 5.1 Define the term isotope. Atoms of the same element having the same number of protons, but different number of neutrons. Study the unknown elements A to E below: 5.2 A. 19 9 5.2.1 B. 19 10 C. 20 D. 21 11 E. 19 Which of the elements above are isotopes of each other? 5.2.2 Write down the name of this isotope. 5.3 Calculate the relative atomic mass of copper by using the following isotopes of copper: 636 Copper isotopes: 63 Cu-69% and 65 Cu-31% 163x69)(65x31) Classwork. QUESTION 3 Con 3.1 3.1.1. 3.1.2, 3.1.7 3.1. 100 4347 +2015. 10 100 63,62 5.4 Complete the table below. Write only the answer next to question number 5.4.1-5.4.5. Atomic Number of Number of Number of Element Fluoride ion 5.4.3 Mass number number protons neutrons electrons 5.4.1 9 9 5.4.2 10 25 5.4.4 12 5.4.5 12