When a beam of alpha particles passes between two electrically charged plates, the beam is deflected toward the positive plate. A) true B) false Boron oobtained from borax deposits in Death Valley consists of two isotopes. They are boron -10 and boron -11 with atomic masses of 10.013 amu and 11.009 amu, respectively. The atomic mass of boron is 10.81 amu (see periodic table). Which isotope of boron is more abundant, boron-10 or boron-11?
A) boron-11
B) boron-10
C) cannot be determined from data given
D) neither, their abudances are the same.