Question

Grade: Name: Datc: PREVIEW WORKSHEET FOR EXPERIMENT A "RADIOACTIVTY AND ABSORPTION OF RADİOACTİVE PARTICLES. Fill-in-the-blank survey about some basic atomic and nuclear information. In the following fill in each blank with the appropriate word or number. You can get most of these answers by watching and the rest by Googling the topic. and the are the two nuclear particles and, collectively is electrically positive and theis electrically the a) The three main building blocks of the atom are the b) The and the they are called c) The d) Of the two nucleons, the is the extranuclear atomic particle and it is electrically e) The diameter of an atom is of the order of m and the diameter of a nucleus is of the order of It follows that the cross-sectional area of an atom is about times the cross- sectional area of a nucleus. ) The atomic number of an atom denotes the number of in the nucleus; it also in the extranuclear structure of the atom. denotes the number of g) The atomic mass number denotes the number of b) An atom denoted by nX" has in the nucleus of the atom. protons in its nucleus, neutrons in its nucleus, and electrons in its extra nuclear structure. i) One electron volt ofenergy is ergs ofenergy joules of energy. (Joule or is the SI unit constructed from kg, m, and s. Erg is the 'cgs' unit, constructed from g, cm, ands.) j) An MeV of energy means k) The basic equation relating mass and its energy equivalence is electron volts of energy. This equation is developed in what is generally called Einstein's theory of l) If 1 kilogram of mass is converted into energy, the amount of energy so produced is joules, kilowatt-hours, orbarrels of oil energy-equivalent.(1 brl. of oil energy equivalent is about 5.80 x 106 BTU. BTU is constructed in the 'British' system in the same way as calorie in SL.) m) The three radioactive particles commonly found in nature are called particles, particles, and particles. n) The source of radioactive particles is the o) The radioactive particle called an of the atom. particle has the same structure as the nucleus of

Answer 1