The correct atomic symbols of carbon, calcium, copper and cobalt respectively area) C, Cu, Ca, Co b) C, Ca, Co, Cu c) C, Ca, Cu, Co d) Ca, C, Cu, Co

The correct atomic symbols of carbon, calcium, copper and cobalt respectively area) C, Cu, Ca, Co b) C, Ca, Co, Cu c) C, Ca, Cu, Co d) Ca, C, Cu, Co

Explain the formation of ionic compound CaO with electron-dot structure. Atomic numbers of calcium and oxygen are 20 and 8 respectively.

Calcium (Ca) has an atomic number of 20. It can form an ion by losing 2 electrons. What would its charge be?A.2+B.22C.18D.2–

When the nail was copper-plated in Part 3 of the lab, what element do you think was reduced?A Cu2+(aq)B Fe(s)C Cu(s)

The atomic number of three elements A, B and C are 9, 10 and 13 respectively. Which of them will form a cation?