. Which statement describes why the expression is incorrect?(1 point)
Responses
The atomic number for uranium-235 is in the wrong location.
The atomic number for uranium-235 is in the wrong location.
A neutron should be expressed as 10n
, not 01n
.
A neutron should be expressed as 0 to the 1th power n, not 1 to the 0 power n.
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 11H
, not 01n
.
A neutron should be expressed as 1 to the 1th power cap h, not 1 to the 0 power n.
1 answer
The correct choice 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 (number of nucleons) is written at the top left and the atomic number (number of protons) is written at the bottom left. For a neutron, the mass number is 1 and the atomic number is 0, so it should be written as \( ^1_0n \). The expression \( ^0_1n \) is incorrect because it places the mass number in the wrong position.
