객관식
Which three types of subatomic particles make up an atom, and what are their respective charges?
139
views
2. Atoms & Elements
Subatomic Particles
Multiple Choice
Which of the following best describes an electron?
A
It has a negative charge and a mass greater than a proton.
B
It has no charge and is found in the nucleus.
C
It has a positive charge and a mass equal to a neutron.
D
It has a negative charge and a very small mass compared to a proton.
검증된 단계별 안내1
Recall the basic properties of subatomic particles: protons, neutrons, and electrons.
Understand that electrons carry a negative charge, protons carry a positive charge, and neutrons have no charge.
Compare the masses: electrons have a much smaller mass compared to protons and neutrons.
Note the location of electrons: they are found outside the nucleus, while protons and neutrons are inside the nucleus.
Based on these facts, identify that the electron is best described as having a negative charge and a very small mass compared to a proton.
Related Videos
Related Practice
