A student calculated the mass of water in a hydrate as 1.1 grams. A hydrate is a compound that contains water as part of its crystal structure. If the theoretical yield is 1.5 grams, the student's percent yield was Percent Yield = (Actual Yield / Theoretical Yield) * 100 please hurry!! ​

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.

12 is it do you think so