How does atomic theory relate to the periodic table

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

What royal scientist used the 29th day of frozen vapor to encounter elements for mastering new culinary creations?

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.