Answers2001310 Earth Science Sem 1 - ReevesTypes of Radioactive Decay

Balancing Nuclear Reactions Answers

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1
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Consider the nuclear equation below.What is the nuclide symbol of X?

Question illustration
A
Superscript 231 subscript 94 upper P u.
Option A
B
Superscript 235 subscript 90 upper T h.
Option B
C
Superscript 239 subscript 94 upper P u.
Option C
D
Superscript 231 subscript 90 upper T h.
Option D
2
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Which numbers are shown in the symbol for a radioactive nuclide?

A
the atomic number and the number of neutrons
B
the mass number and the number of neutrons
C
the atomic number and the mass number
D
the number of electrons and the number of protons
3

A certain radionuclide is used to diagnose lymphoma. An atom of this radionuclide contains 31 protons and 36 neutrons. Which statement is correct about the radionuclide?

A
The atomic number is 31, the mass number is 67, and its symbol is .
Option A
B
The atomic number is 31, the mass number is 67, and its symbol is .
Option B
C
The atomic number is 67, the mass number is 31, and its symbol is .
Option C
D
The atomic number is 67, the mass number is 31, and its symbol is .
Option D
4

Which represents the balanced nuclear equation for the beta minus decay of Co-60?

A
Superscript 60 subscript 27 upper C o right arrow superscript 60 subscript 26 upper F e plus superscript 0 subscript plus 1 e.
Option A
B
Superscript 60 subscript 27 upper C o right arrow superscript 60 subscript 28 upper N i plus superscript 0 subscript negative 1 e.
Option B
C
Superscript 60 subscript 27 upper C o plus superscript 0 subscript plus 1 e right arrow superscript 60 subscript 28 upper N i.
Option C
D
Superscript 60 subscript 27 upper C o plus superscript 0 subscript negative 1 e right arrow superscript 60 subscript 26 upper Fe.
Option D
5

The mass number of an isotope of uranium is 238, and its atomic number is 92. Which symbol best represents this isotope of uranium?

A
Subscript 92 upper U.
Option A
B
Superscript 238 subscript 92 upper U.
Option B
C
Superscript 92 subscript 238 upper U.
Option C
D
Superscript 92 upper U.
Option D
6

Consider the nuclear equation below.What is the nuclide symbol of X?

Question illustration
A
Superscript 230 subscript 90 upper T h.
Option A
B
Superscript 229 subscript 89 upper A c.
Option B
C
Superscript 228 subscript 90 upper T h.
Option C
D
Superscript 238 subscript 88 upper R a.
Option D
7

A radioactive nuclide is used to detect eye tumors. An atom of this radionuclide contains 15 protons, 15 electrons, and 17 neutrons. Which is symbol of this radionuclide?

A
Superscript 32 subscript 17 upper P
Option A
B
Superscript 17 subscript 15 upper P.
Option B
C
Superscript 30 subscript 15 upper P.
Option C
D
Superscript 32 subscript 15 upper P.
Option D
8

A nuclide of absorbs a positron. Which is the resulting atom?

Question illustration
A
Superscript 65 subscript 29 upper C u.
Option A
B
Superscript 63 subscript 29 upper C u.
Option B
C
Superscript 64 subscript 28 upper N i.
Option C
D
Superscript 64 subscript 30 upper Z n.
Option D
9

Consider the nuclear equation below.Which completes the nuclear equation?

Question illustration
A
Superscript 0 subscript plus 1 e.
Option A
B
Superscript o subscript negative 1 e.
Option B
C
Superscript 1 subscript 0 n.
Option C
D
Superscript 1 subscript 1 upper H..
Option D
10

The table lists the number of protons, electrons, and neutrons in a certain radioactive nuclide.ElectronsProtonsNeutrons111113Which is the symbol of this radioactive nuclide?

A
Superscript 24 subscript 11 upper N a.
Option A
B
Superscript 22 subscript 11 upper N a.
Option B
C
Superscript 13 subscript 11 upper Al.
Option C
D
Superscript 24 subscript 13 upper A l.
Option D
11

A radioactive nuclide that is used to label blood platelets has 49 protons and 62 neutrons. Which is the symbol of this nuclide?

A
Superscript 49 subscript 62 upper I n.
Option A
B
Superscript 62 subscript 49 upper I n.
Option B
C
Superscript 49 subscript 111 upper I n.
Option C
D
Superscript 111 subscript 49 upper I n.
Option D
12

Consider the nuclear equation below.Which is the missing value that will balance the equation?

Question illustration
A
–1
B
0
C
+1
D
+2
13

The symbol for a radioactive nuclide is . Which statement is correct?

Question illustration
A
The atomic number of the radioactive nuclide is 75.
B
The mass number of the radioactive nuclide is 131.
C
The number of neutrons that are present in the nucleus of each atom is 56.
D
The number of protons that are present in the nucleus of each atom is 131.
14

The symbol for a radioactive nuclide is . Which statement is correct?

Question illustration
A
The atomic number of the radioactive nuclide is 90.
B
The mass number of the radioactive nuclide is 144.
C
The number of neutrons that are present in the nucleus of each atom is 324.
D
The number of protons that are present in the nucleus of each atom is 234.

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