A chemist prepares a solution of magnesium fluoride by measuring out of magnesium fluoride into a volumetric flask and filling the flask to the mark with water. Calculate the concentration in of the chemist's magnesium fluoride solution. Be sure your answer has the correct number of significant digits.

Five students had to answer the question how are elements arranged in a periodic tabledamon: i think the elements are arranged by increasing massflo: i think the elements are arranged according to their properties sienna: i think the elements are arranged by when their discovers kyle: i think the elements are arranged according to how common they areglenda: i don't agree with any of themwho is right

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons