Question

This liquid metal has more protons than gold, but fewer electrons then thallium.

Answer 1

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:

Mercury (Hg)