Atomic and Nuclear Physics Answers

Write down the electronic configuration of the Si atom. What type of bonding would
you expect to find in Si?

What are the advantages of the neutron diffraction method?

Sodium metal crystallizes in the bcc structure. The metal has atomic weight 23 and
density 971 kgm^−3. Calculate the cubic lattice parameter a and the shortest distance
between atoms in this structure.

In a p-n junction in Si, Nd = Na = 10^22 m^−3.
Calculate the built in potential for Si at
300 K if ni for Si at 300K=10^16m^−3.

A typical atom has a diameter of about 1.0x10^-10 meters. What is this in inches?

An electron in the n = 6 level of an H atom emits a photon of wavelength 2626 nm. To what energy level does it move?

What if they create a Blackhole with the Cern Hadron Collider? How will it effect the planet?

lithium . 2,1

if the electron orbit the atom have a frequency of vibration.

do the electron from different shell's level have different frequency?

how is the frequency of electrons defined from a 3 dimensional geographical point of view,

or how is it define in modern physics ?

its kind of difficult to imagine election going back to the same coordinate after one cycle of orbit.

a phonomenon on branches of physics related to our daily life