Why Energy Comes in Quanta (Parent Q&A)
This guide explains why some quantum systems have particular allowed energies rather than every possible value. Open Full Article...
atomic spectra
Why Energy Comes in Quanta (Teach This Topic)
This guide supports a connected lesson on why some quantum systems have discrete energy levels while unbound particles can have continuous energies. Open Full Article...
Why Energy Comes in Quanta
Why can an atom absorb one colour of light but ignore another? Open Full Article...