Mercury is in the 80th position in the periodic table. how many protons does it have? a. 8 b. 40 c. 80 d. 160

Select the atomic models that belong to the same element

What is the number of atoms in 3.54 mol s

Explain why pure hydrogen cyanide does not conduct electricity, but become a conductor when it is dissolved in water? (at room temp, pure hcn exists as a volatile liquid)