객관식
In the simplified model of subatomic particles, what do an electron and a neutron have in common?
72
views
4. Atoms and Elements
Subatomic Particles (Simplified)
객관식
In simplified terms using relative masses (with the proton as the reference), what is the relative mass of a proton?
A
B
C
D
검증된 단계별 안내1
Understand that the problem asks for the relative mass of a proton using the proton as the reference point. This means the proton's mass is compared to itself.
Recall that relative mass is a ratio comparing the mass of a particle to the mass of a reference particle. Here, the proton is the reference, so its relative mass is set to 1.
Recognize that the proton's mass is approximately 1 atomic mass unit (amu), which is the standard unit used for relative atomic masses.
Note that other particles, like electrons, have much smaller relative masses (for example, about 1/1840 of a proton's mass), but this does not affect the proton's relative mass when it is the reference.
Conclude that since the proton is the reference particle, its relative mass is defined as 1 by convention.
관련 영상
관련 실천
