Which of the following does not carry neutrons?

Name: Which of the following does not carry neutrons?
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Question

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Neutrons have a mass of 1 and a charge of 0, so any particle that carries a charge must therefore not carry neutrons. Choice C, 1H (hydrogen), has a mass of 1 and a charge of +1, indicating that it carries a proton but not a neutron. A) 1n (neutron) carries 1 neutron, B) alpha rays carry 2 protons and 2 neutrons (so 2 neutrons), D) deuterium carries 1 proton and 1 neutron.

Which of the Following Does Not Carry Neutrons