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1. Binding energy per nucleon in a nucleus is... a. the same for all nuclei b. t

ID: 922867 • Letter: 1

Question

1. Binding energy per nucleon in a nucleus is...

a. the same for all nuclei

b. the greatest for the largest nuclei

c. the greastest for medium-sized nuclei

2. Of the following consrvation laws, which (if any) is not obeyed in radioactive decay?

a. momentum

b. charge

c. angular momentum

d. all of these are obeyed

3. The gravitational force, the electromagnetic force, and the strong nuclear force are__ range, __ range, and __range, respetively.

a. short, long, long

b. short, short, short

c. long, short, short

d. long, long, short

3. Which of the following nuclear reactions is forbidden?

73Li+32He --> 11p +2 42He

73Li+11H --> 2 42He

10n+23592U --> 13250Sn+10142Mo+310n

42He+31H --> 73Li

73Li+32He --> 11p +2 42He

73Li+11H --> 2 42He

10n+23592U --> 13250Sn+10142Mo+310n

42He+31H --> 73Li

Explanation / Answer

1)

c. the greastest for medium-sized nuclei

2)

b. charge

3)

d. long, long, short

4)

73Li+32He -----------------> 11p +2 42He

here in this equation reactant side

mass number = 10

atomic number = 5

product side

mass number = 9

atomic number = 5

mass numbers are not equal so it is forbidden