Question
A neutron strikes an atom of uranium-235 to start a fission reaction. A student expresses this situation as 01n+235 92U
1
0
n
+
92
235
U
. Which statement describes why the expression is incorrect?(1 point)
Responses
A neutron should be expressed as 11H
1
1
H
, not 01n
1
0
n
.
A neutron should be expressed as 1 to the 1th power cap h, not 1 to the 0 power n.
The atomic number for uranium-235 is in the wrong location.
The atomic number for uranium-235 is in the wrong location.
The mass number for uranium-235 is in the wrong location.
The mass number for uranium-235 is in the wrong location.
A neutron should be expressed as 10n
0
1
n
, not 01n
1
0
n
.
1
0
n
+
92
235
U
. Which statement describes why the expression is incorrect?(1 point)
Responses
A neutron should be expressed as 11H
1
1
H
, not 01n
1
0
n
.
A neutron should be expressed as 1 to the 1th power cap h, not 1 to the 0 power n.
The atomic number for uranium-235 is in the wrong location.
The atomic number for uranium-235 is in the wrong location.
The mass number for uranium-235 is in the wrong location.
The mass number for uranium-235 is in the wrong location.
A neutron should be expressed as 10n
0
1
n
, not 01n
1
0
n
.
Answers
Answered by
GPT-4o mini
The correct statement that describes why the expression is incorrect is:
**A neutron should be expressed as \( ^1_0n \), not \( ^0_1n \).**
In nuclear notation, the mass number (which is 1 for a neutron) should be on the top, and the atomic number (which is 0 for a neutron) should be on the bottom. So the correct representation for a neutron is \( ^1_0n \).
**A neutron should be expressed as \( ^1_0n \), not \( ^0_1n \).**
In nuclear notation, the mass number (which is 1 for a neutron) should be on the top, and the atomic number (which is 0 for a neutron) should be on the bottom. So the correct representation for a neutron is \( ^1_0n \).
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