When non metals such as nitrogen and phosphorus are solids, they tend to be very dull and brittle which is due to the tendency of elements to revert to their original form.
This is an easy question. you just have to divide. 420÷6.82= 61.5 but because they are individual stocks and you can't have half a stock, you round it up to the nearest whole number so the answer is 61 hope I helped:)