When the overall charge is equal to zero
A gland is an organ that excretes chemical fluids to discharge into the surroundings or for use in the body.
The anode is charged positively. Oxidation happens on the anode.
For example,
(anode +) Zn - 2e⁻ = Zn²⁺
The number of protons and electrons of an atom is equal
and the amount can be obtained by looking at the atomic number of that atom or
element.
The atomic numbers are:
Gold = 79
Thallium = 81
So we are looking for the element with an atomic number of
80, that is:
Mercury
Answer:
<span>Mercury (Hg)</span>
