I am having some trouble with some questions and need some help.

Question

A neutron with a mass of 1.68 x10(-27) exponent kg moves from a nuclear reactor with a velocity of 3.22 x10 (3) exponent m/s. What is the Broglie wavelength?

Also, I need to write tge complete electron configuration for a. neon b. sulfur and c.calcium

Thanks. I don't understant this is not that im being lazy

Answer 1

deBroglie wavelength= plancksconstant/momentum

the velocity is low, so relativistic effects can be ignored.

electronic configuration. I don't know if you need to learn how to do it from memory, or just need those atoms.

I will assume you need the algorithm.
http://www.wikihow.com/Write-Electron-Configurations-for-Atoms-of-Any-Element