Question 1146
Which of the following first-row transition metal ions appears purple in aqueous solution?
Question 1147
Which of the following first-row transition metal ions is colourless in aqueous solution?
Question 1148
What is the electronic configuration of the Zn2+ ion?
Question 1149
What is the electronic configuration of the Cu2+ ion?
Question 1150
What is the electronic configuration of the Co2+ ion?