IB Physics Pulling Apart a Hydrogen Atom
/When a hydrogen atom is ionised does the mass decrease, stay the same or increase?
When an electron “jumps down” to its ground state does the mass of the hydrogen atom decrease, stay the same or increase?
When an electron “jumps up” from its ground state to its first excited state does the mass of the hydrogen atom decrease, stay the same or increase?
Is the mass of a hydrogen atom equal to the mass of a proton plus the mass of an electron?
Imagine that a proton and an electron link to form a hydrogen atom. Is energy released or absorbed in the process? In what form is the energy change?
Is the proton in the hydrogen atom the same as a free proton?
In the Bohr theory of the hydrogen atom the speed of the electron in the ground state is v. What is the speed of the electron in the first excited state?
In the Bohr theory of the hydrogen atom the energy of the ground state is E. What is the energy of the first excited state?
How can the hydrogen atom have a negative energy?
The ground state energy of the hydrogen atom is -13.6 eV. A potential difference is applied to some hydrogen gas in a discharge tube. Will an applied voltage of 3.4 V cause the gas to emit light?
See Resnick and Halliday, Basic Concepts in Relativity and Early Quantum Theory , second edition, page 113
