Question

the wavelike properties of electrons are useful in _____.

determining the velocity and position of a particle

defining photons

writing electron configurations

magnifying objects

Explanation:

Electron microscopes utilize the wavelike properties of electrons to magnify objects. The Heisenberg uncertainty principle makes it impossible to precisely determine both the velocity and position of a particle, so that option is incorrect. Photons are defined by their own properties (not electron wave - like properties). Writing electron configurations is based on electron energy levels and quantum numbers, not the wavelike property for magnification.

Answer:

magnifying objects