Question
Which particles within an atom have a relative mass of 1? (Select all that apply) Protons Electrons Neutrons
Answer
4.3
(285 Votes)
Thomas
Elite · Tutor for 8 years
Answer
Sure, let's work through this problem step-by-step.## Step 1: Understanding Relative Atomic MassThe relative atomic mass of a particle is a dimensionless quantity that compares the mass of the particle to 1/12th the mass of a carbon-12 atom. For simplicity, we often use atomic mass units (amu), where 1 amu is defined as 1/12th the mass of a carbon-12 atom.## Step 2: Analyzing Each ParticleWe need to determine the relative mass of each of the given particles: protons, electrons, and neutrons.### Protons- The mass of a proton is approximately
kilograms.- In atomic mass units, the mass of a proton is approximately 1 amu.### Electrons- The mass of an electron is approximately
kilograms.- In atomic mass units, the mass of an electron is approximately
amu, which is much smaller than 1 amu.### Neutrons- The mass of a neutron is approximately
kilograms.- In atomic mass units, the mass of a neutron is approximately 1 amu.## Step 3: ConclusionBased on the relative masses:- Protons have a relative mass of approximately 1 amu.- Electrons have a relative mass much smaller than 1 amu.- Neutrons have a relative mass of approximately 1 amu.## AnswerThe particles within an atom that have a relative mass of 1 are:- **Protons**- **Neutrons**These are the particles that have a relative mass of approximately 1.