6. The AHsoln is
A sometimes positive, sometimes negative
B always positive
C always negative
D always o

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

How can one make a supersaturated solution? (apex)

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123