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Physics

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

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