The Ksp of calcium phosphate Ca3(PO4)2 is 1.3 × 10-32 at 25°C. What is the solubility of Ca3(PO4)2 in moles/Liter in a 0.20 Molar solution of Na3PO4?
A.
2.3 × 10-11 moles/Liter
B.
4.3 × 10-13 moles/Liter
C.
2.3 × 10-32 moles/Liter
D.
1.3 × 10-32 moles/Liter

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.

3 1/4 %

explanation: