Please answer 12-14? The multiple choice for 14 got cut off and continues onto t

Question

Please answer 12-14? The multiple choice for 14 got cut off and continues onto the next page :) D) 179 89.7 m All atoms of a given element have the same A) mass number B) number of nucleons C) atomic mass D) number of neutrons tomic number 12) Which one of the following is a correct representation of a positron? ‘ A) e 0 0 E) 4 13) Alpha decay produces a new nucleus whose than those r than those respectively of the nucleus whose original nucleus. A) atomic number is 2 less and mass number is 2 less B) atomic number is 1 less and mass number is 2 less C) atomic number is 2 less and mass number is 4 less D) atomic number is 2 more and mass number is 4 more E) atomic number is 2 more and mass number is 2 less 14) Which of these nuclides is most likely to be radioactive? 39 19 A) "K

Explanation / Answer

(12)

(C) Positron is 01e

(13)

(C) Alpha particle is 42He2+

(14)

(D) 24395Am

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