Empirical evidence is observable or measurable information gained through experimentation and observation. Science is based on empirical evidence and is ongoing. After a hypothesis has been tested and there is empirical evidence supporting it, that hypothesis is not "true" and that science is not "done." In science, there must be a possibility of evidence not supporting a claim. This characteristic of science is called falsifiability. Another key characteristic of the scientific process is that it's replicable. That means that it can be repeated to yield the same results. Different teams of scientists should be able to come to the same conclusions when they follow the same steps with the same variables. Science aims to explain the natural world, not just what might be true some of the time. Empirical evidence...

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?

How can the number of core electrons be determined from the periodic table

Will give imagine you are given a mystery element. it is, however, a discovered and known element. you may perform a maximum of two observations or tests to determine its identity. time and money is critical, so you need to prioritize your tests. if you can get by with a single test, you get 100 super-geek points from your research lab team. pick your two tests, number them as #1 and #2, and justify why you think these two will certainly be enough (and why the first might well be enough all by itself.) the available tests are classification into metal, non-metal, or metalloid, count of valence electrons, count of electron shells, atomic radius (error range: +/- 1 pm), electronegativity (error range: +/- 0.1), first ionization energy (error range: +/- 10 kj/mole), melting point (error range: +/- 10 c), and boiling point (error range: +/- 20 c).