Which statement about subatomic particles is true?
A. Protons, neutrons, and electrons all have about the same mass.
B. Unlike protons or neutrons, electrons have no mass.
C. Neutrons have no charge and no mass.
D. An electron has far less mass than either a proton or neutron.
The correct statement about subatomic particles is:
D. An electron has far less mass than either a proton or neutron.
The correct statement about subatomic particles is:
D. An electron has far less mass than either a proton or neutron.
To understand this statement, we need to know some basic information about subatomic particles.
Protons, neutrons, and electrons are the three main types of subatomic particles found in atoms. Protons have a positive charge and are located in the nucleus of an atom. Neutrons have no charge and are also located in the nucleus. Electrons have a negative charge and orbit around the nucleus.
Now, let's compare the masses of these subatomic particles:
- Protons have a mass of approximately 1 atomic mass unit (amu).
- Neutrons also have a mass of approximately 1 amu, which is very close to the mass of a proton.
- Electrons, on the other hand, have a much smaller mass. They have a mass of approximately 1/1836 amu, which is significantly less compared to the masses of protons and neutrons.
Based on this information, we can conclude that an electron has far less mass than either a proton or neutron. Therefore, statement D is true.
i chose a
Electrons have the smallest mass of any subatomic particle
Protons and electrons have exactly opposite charges
Protons and neutrons have approximately the same mass
They can have antiparticles
They have magnetic and electric properties
They have a lifetime
They have a spin.