Just like you should respond to a request for an interview within 24 hours, if your contact follows up with you (good sign!), be sure to reply within one day (and ideally within a few hours).
Aluminum has a density of 2.7 grams per milliliter. An element in the boron group, aluminum is a very light metal, but it is dense enough to sink in water. It is the third most abundant element in the Earthâs crust and is the most abundant metal overall.
Iridium, with a calculated density of 22.65 grams per cubic centimeter, is the densest element, but osmium, with a density of 22.61 grams per cubic centimeter, is nearly identical. Density can vary depending on factors such as temperature and pressure. Under some conditions, osmium may appear denser than iridium.