89 _ The Nucleus ofthe atoms was discovered by a Physicist by the name of 83 _ Mhat is an isotope? m Atoms with the same number of neutrons, but different numbers of protons b. Atoms with the same number of protons, but different number of electrons c. Atoms with the same atomic mass, but different atomic number Z d. Atoms with the same atomic number Z, but different atomic mass e. None of the above 85. The Sun radiates light with a power of 3.92 x 1026 Watts How much mass does the Sun lose each second? m 3.92 x 109 kg b. 4.36 x 109 c. 4.36 x 109 kg e. None of the above 87. The electron was discowered by a Physicist by the name nf_ m b. c. e. Planck Rutherford De Broglie Schrodinger 91 _ Modem Quantum Physics and Chemistry was invented independently by the following Physicists by m b. c. e. Rutherford Copernicus and Kepler Galileo and Tycho Brahe Schrodinger and Einstein and De Broglie 93 95 The quantum of energy was discovered by the following Physicist m b. c. e. Einstein Bohr Planck Rutherford A ray of light passes from air into a block of glass with a refractiR index of 1_50 as shoun in the figure. Note: The drawing is not scale What is the value of the distance D? a. 1.42 cm b. 1.66 cm c. 1.90 cm d. 2.14 cm e. 2.38 cm m b. c. e. Niels Bohr Max Planck J. J _ Thomson Lord Ral eigh Einstein