Atomic Structure -Past Paper Questions 1)
Q is radioactive. Radioactive substances are widely used in medicine, agriculture
and industry. What is meant by the term 'radioactive'?
(1 mark)​

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.

What is one real world example of a colligative property?

If maltose undergoes hydrolysis what subunits does it results to?