In writing an element's symbol the first letter is always and the second letter is a) capitalized, capitalized b) not capitalized, capitalized c) capitalized, not capitalized d) not capitalized, not capitalized

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.