20 !
write the equation for the dissolution of each of the following in water, and then indicate the total number of moles of solute ions formed.

a. 0.50 mole rb3po4

b. 0.50 mole cr2(so4)3

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.