Answers25-26 KCS18 Chemistry ICUnit Test

Balancing Nuclear Reactions Answers

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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
2
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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
3

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
4

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.
5

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
6

Which represents the balanced equation for the beta minus emission of phosphorus-32?

A
Superscript 32 subscript 15 upper P right arrow superscript 28 subscript 13 upper A l plus superscript 4 subscript 2 upper H e.
Option A
B
Superscript 32 subscript 15 upper P right arrow superscript 32 subscript 14 upper S i plus superscript 0 subscript negative 1 e.
Option B
C
Superscript 32 subscript 15 upper P right arrow superscript 32 subscript 16 upper S plus superscript 0 subscript negative 1 e.
Option C
D
Superscript 32 subscript 15 upper P right arrow superscript 32 subscript 14 upper S i plus superscript 0 subscript plus 1 e.
Option D
7

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.
8

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
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

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

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