A nuclide has a decay constant of If the activity of a sample is how many atoms of the nuclide are present in the sample? (a) (b) (c) (d) (e) none of these.
Chapter 1 Chemistry- known as the study of matter and changes that it undergoes Matter- is anything that occupies space You occupy space therefore you are matter Substance- is a form of matter that has a definite composition Ex: water or gold Qualitative Information- characteristics that are different from each other, mostly physical If the end product is spikey looking versus something that is smooth looking Quantitative Information- information given in the form of numbers Ex. The height of an object Law of Conservation of Mass- this states that matter cannot be created or destroyed Scientific Law- a brief statement that summarizes a previous observation Theory- desc
