Ask the Van Questions by Subcategories

New and Exciting Physics: Inside the Atom

Why do electrons move?
Nucleons
Atomic numbers: protons, neutrons, and electrons
How are nuclear forces acting in between the protons in the nucleus?
Electrons in He3
isotopes
fission energy
Speedy Electron
Atom's Shells and Orbitals
Neutrons Sometimes Outnumber Protons
Why don't electrons fall into the nucleus?
Hadrons
electron in atom
Why don't atoms explode - or collapse?
fission chain reaction
sodium ion size
Extra Electrons
why don't atoms crash?
Fission criticality
Nucleons sticking and decaying
Atomic mass numbers not integers
fission bombs
Protons, Neutrons, and Electrons
How to build a model atom.
self-repulsion
Combining Atoms
Arsenic Shells and subatomic particles
Proton proton forces
atomic shells
What are the advantages of the plum pudding model?
8 states in atomic shell
atom models
Minimum and maximum masses of nucleii
color of nuclei?
why are atoms stable?
Is charge quantized?
What force holds protons in the nucleus together.
spin quantum number m
Improbable nuclei made of neutrons and electrons
electrons in atoms repel
3-D electron cloud
What makes electrons orbit around nucleus?
atomic shells?
What tells the atoms how to behave?
quantum degeneracy
Dalton's model and parts of atom
Neutron-proton attraction
Why don't electrons crash into the nucleus?
Positronium
source of electron's energy
Can Beta and Alpha decay occur from the same nucleous?
Why do we have neutrons in nuclei
Would a matchbox full of nuclei weigh more than the earth?
Isotopes in nuclear fusion
nuclear force and quarks
Can we calculate radioactive decays?
Where do photons come from?
What's inside an atom and how do you know?
Spatial dependence of attractive and repulsive forces
Appearance of electrons in radioactive nuclei
relativistic Doppler effect
What is the shape of a wavefunction?
How do quantum leaps happen?
magnetism in hydrogen atom
atom shells and orbitals
Are electrons like planets?
multi-photon emission
Self-Sustaining Nuclear Fusion
Are atoms empty?
how do electrons move in atoms?
stability of hydrogen vs. positronium
Is there a medium for electron waves?
how can an electron move two ways at once?
Electron repulsion
atomic energy levels
nuclear reactions and mass
How can a battery work?
Probability Wavefunctions in an Atom
electron near nucleus
electrons around protons
Oil Drop Experiment and Mass Spectrometry
visualizing electron waves in atoms
Quarks and Fractional Charges
magnetic effects and octet rule?
color multipoles
Instability of the classical model of the atom
Why are protons less massive than neutrons?
combining basic ingredients
Electron speed and charge?
Changing atomic numbers?
atom shape
atoms destroyed
Energy levels in an atom
squeezing atoms
fusion limits
cold fusion?
alpha particle scattering
H emission spectrum
spiralling electrons
Nuclear electron capture accounting

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New and Exciting Physics: Inside the Atom