Multiple ChoiceIf calcium ions, each of which has a charge of 2+, are present in a solution, what is the chemical symbol for a calcium ion?55views
Multiple ChoiceWhich of the following correctly identifies the cation and anion present in MnCl4?59views
Multiple ChoiceGive the correct number of protons, neutrons and electrons for the following isotope:.4870views40rank
Multiple ChoiceOne isotope of a metallic element has a mass number of 65 and 35 neutrons in the nucleus. The cation that this atom forms has 28 electrons. What is the symbol of the cation?4078views25rank1comments
Multiple ChoiceWhich of the following is the symbol for the ion with a +4 charge, 30 neutrons and 21 electrons?3329views29rank1comments