Quantum Mechanics Answers

I've been told many times that electrons are indivisible particles, I've come up with a thought experiment that tells me that is wrong, electrons have fundamental components creating them. I'd like to know how we know that the standard model particles are indivisible??

Germainium a 200.0 K has 1.16×10^10 free electrons per atom. If you wanted to have 2×10^3 as many electrons from arsenic doping as thermally free electrons in a Germainium semiconductor, how many arsenic atoms should there be per Germainium atom ?

Hello.I was told that a parllel universe can share the same dimension

 Three spin less non-interacting distinguishable particles, with respective masses  𝑚1, 𝑚2, and 𝑚3 in the ratio 𝑚1: 𝑚2: 𝑚3 = 1: 2: 3, are subject to a common infinite  square well potential of width L in one spatial dimension. Determine the energies and the corresponding wave functions in the lowest two energy states of the system.

The current position of the harmonic oscillator is given by the relation 

x(t)=(0,3m)cos(πt/2).Time t is expressed in seconds. Find the period of the oscillator.

Derive Schrodinger’s wave equation for a free particle in free space

Calculate the de-Broglie wavelength of a proton whose kinetic energy is equal to the rest mass energy of an electron (mass of proton is 1836 times that of electron). 

What is the ratio of the relativistic mass to the rest mass for an electron and a proton when it is accelerated from rest through a potential difference of 15mv(mega volts)

take mass of electron=0.5mEv and mass of proton=1000mEv

Show that the orbit nearest to the nucleus in the hydrogen atom accommodates one electron waves. Given that the energy of the electron in the orbit is 13.6 eV, h=6.625x10-34Js, m=9.11x10-31kg, Bohr radius r1 =5.292x10-11 m.

Find the lowest energy of an electron confined in a cubical box of each side 1 Å?