1Using the provided atomic masses, calculate the mass defect of the tritium isotope (3_1H) which has a nuclear mass of 3.0160490 u.
2
Based on the properties of isotopes, all isotopes of the element Uranium must share which of the following characteristics?
3Which of the following statements correctly describe Thomson's 'plum pudding' model of the atom?
4What is the minimum amount of energy, in electron volts (eV), required to completely ionize a hydrogen atom from its ground state (n=1)?
5Determine the wavelength of light emitted when an electron in a hydrogen atom makes a transition from the n=5 energy level to the n=2 energy level.
6If the binding energy of a specific nucleus is -128 MeV, what is the approximate value of its mass defect? (Use 1 u = 931.49 MeV)
7Calculate the energy level of the third state (n=3) of a Hydrogen atom.
8According to the Bohr model and quantum physics, which of the following statements about electrons in an atom are true?
9A hypothetical atom has energy levels at -1 eV, -3 eV, -7 eV, and -12 eV. If an electron at the -1 eV level must reach the -12 eV ground state by emitting exactly two photons, which of the following photon energies is NOT possible?
10How many protons, electrons, and neutrons are present in a neutral atom of magnesium-24 (24_12Mg)?
