2.70x10^23 molecules F2 x__1 mol F2____________ x38gF2__
6.02x10^23 mc F2 1mol F2
then solve
Answer:
he line begins at boron (B) and extends down to polonium (Po). Elements to the left of the line are considered metals. Elements just to the right of the line exhibit properties of both metals and nonmetals and are termed metalloids or semimetals. Elements to the far right of the periodic table are nonmetals.