Vanadium can lose 1 to 5 electrons to give possible positive charges 1, 2, 3, 4, or 5. A previous worker in your lab gave you a vial labelled "Vanadium fluoride", but did not include the chemical formula on the label and did not indicate the charge of the vanadium ion. {Always be complete when you label things!!} The label does indicate that the formula mass is 126.94g/mol. What is the charge of the vanadium in this "vanadium fluoride"

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount