The end of a syringe is held shut while the plunger is pushed 2/3 of the way down the cylinder. What is the internal pressure of the cylinder as compared to the original pressure?

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)

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Which reason best explains why metals are malleable? a)because they have delocalized electrons b)because they have localized electrons c)because they have ionic bonds d)because they have rigid bonds