How are ionic bonds formed?

a. sharing of electrons between atoms
b. gain of electrons by atoms
c. loss of electrons by atoms
d. electrostatic forces between atoms

How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2

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

Which proportionality applies to avogadro’s law?