In a metallic bond, what happens to valence electrons during bond formulations? a. valence electrons are shared between two metal atoms
b. Valence electrons "surf" on overlapping D orbitals
c. Valence electrons are transferred from metals to non metals
d. valence electrons are shared between non metals.

What is the mass of each element in a 324.8 sample of co2

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.

How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it