The electrons in the outermost shell of an atom are called: Select the correct answer below:
core electrons
valence electrons
distant electrons
ions

Asample of silver (with work function ? = 4.52 ev) is exposed to an ultraviolet light source (? = 200 nm), which results in the ejection of photoelectrons. what changes will be observed if: silver is replaced with copper (? = 5.10 ev) more photoelectrons ejected no photoelectrons are emitted fewer photoelectrons ejected more energetic photoelectrons (on average) less energetic photoelectrons (on average)

Si una estrella no tiene paralaje medible, ¿qué puedes inferir?

The pressure in a fluid is affected by which characteristics of that fluid