C. Neutron D.
Topics: Neutron / Pages: 4 (966 words) / Published: Jan 27th, 2014

Chemistry 116: General Chemistry
Syracuse University Project Advance
Spring 2009 Exam #4

Name Date

1. The bombardment of with nuclei gives two products, one of which is The other product is ________.

A.
B.
C.
D.
E.

2. The decay of to occurs through the emission of a(n) ________.

A. alpha particle
B. beta particle
C. neutron
D. proton
E. positron

3. Radionuclides which have too low of a neutron/proton ratio generally decay through ________.

A. beta emission
B. electron capture or positron emission
C. gamma ray emission
D. alpha emission
E. neutron absorption

4. How many neutrons does have?

A. 21
B. 23
C. 25
D. 46
E. 67
5. Identify the missing product in the following nuclear reaction:

  _______ +

A.
B.
C.
D.
E.

6. Analysis of a 4.50-mg sample of a newly discovered isotope showed that only 3.25 mg of the isotope remained after 29.6 h. What is the half-life of the isotope?

A. 47.6 h
B. 53.4 h
C. 58.0 h
D. 63.0 h
E. 71.2 h

7. An atom with 15 protons and 18 neutrons is an isotope of

A. argon
B. arsenic
C. chlorine
D. phosphorus
E. sulfur

8. The nuclide symbol represents a(n)

A. electron
B. proton
C. neutron
D. positron
E. gamma photon

9. A positron has the same mass as

A. a gamma ray
B. a neutron
C. an alpha particle
D. a proton
E. a beta particle
10. When is bombarded with one neutron, fission occurs. The products are two neutrons, , and

A.
B.
C.
D.
E.

11. The radiation that has the highest penetration power is

A. gamma.
B. beta.
C. positron.
D. X-ray.
E. alpha.

12. The total number of protons and neutrons in the nuclide 37Cl is

(a) 54
(b) 37
(c) 20
(d) 17
(e) 35.45

13. The nuclear reaction 146C ------> 147N + 0-1 e is an example of

(a) nuclear fusion
(b) nuclear fission
(c) natural transmutation
(d) artificial transmutation
(e) none of the above

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