Question

value: 5
identify the positive ion(s) from the list below.
mark all correct answers
a. mercury
b. aluminum

Explanation:

Positive ions (cations) are formed when atoms lose electrons. Mercury (Hg) can form positive ions like $\text{Hg}^{2+}$ (or other positive oxidation states). Aluminum (Al) typically forms the $\text{Al}^{3+}$ ion by losing 3 electrons. So both Mercury and Aluminum can form positive ions.

Answer:

a. Mercury, b. Aluminum