QuestionWhich two atomic particles have similar masses? A) Proton & electron B) Proton & neutron C) Neutron & electron D) None.
Studdy Solution
STEP 1
Assumptions1. The atom consists of protons, neutrons, and electrons.
. The mass of a proton is approximately1 atomic mass unit (amu).
3. The mass of a neutron is also approximately1 amu.
4. The mass of an electron is approximately0.0005 amu.
STEP 2
Compare the masses of the proton and the electron.
The mass of a proton is approximately1 amu, while the mass of an electron is approximately0.0005 amu. Therefore, the proton and the electron do not have nearly identical masses.
STEP 3
Compare the masses of the proton and the neutron.
The mass of a proton is approximately1 amu, and the mass of a neutron is also approximately1 amu. Therefore, the proton and the neutron have nearly identical masses.
STEP 4
Compare the masses of the neutron and the electron.
The mass of a neutron is approximately1 amu, while the mass of an electron is approximately0.000 amu. Therefore, the neutron and the electron do not have nearly identical masses.
STEP 5
Based on the comparisons in steps2,3, and4, we can conclude that the two particles of the atom that have nearly identical masses are the proton and the neutron.
So, the correct answer is (B) Proton and neutron.
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