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Positron emission is associated with ________


A) conversion of a neutron to a proton.
B) conversion of a proton to a neutron.
C) increase in mass number.
D) decrease in mass number.
E) emission of γ\gamma rays.

Correct Answer

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A barrel of oil produces about 5.9 *106 kJ of energy. Fission of 235 g of uranium-235 releases 2.1 *1010 kJ of energy. How many barrels of oil are equivalent to 1 kg of uranium-235?


A) 3,560
B) 15,100
C) 836,600
D) 110,000
E) 55,000

Correct Answer

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The heaviest stable nucleus is an isotope of ________


A) platinum.
B) gold.
C) lead.
D) bismuth.
E) xenon.

Correct Answer

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Which graph below illustrates electron capture? Which graph below illustrates electron capture? A) I B) II C) III D) IV


A) I
B) II
C) III
D) IV

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