Which particles in an atom could demonstrate that opposite charges attract?
A.
a neutron and an electron
B.
two protons together
C.
a proton and a neutron
D.
a proton and an electron

The correct answer is D

Choice D. a proton and an electron.

Explanation:

Each proton carries a positive charge of unit.

Each electron carries a negative charge of unit.

As their name suggests, neutrons are neutral. They do not carry any electrostatic charge. Because of that, neutrons can't attract or repel neutrons or protons with electrostatic forces.

On the other hand, electrons and protons carry opposite charges. Therefore, an electron and a proton would attract each other electrostatically.

However, since protons are all positive, two protons would repel each other electrostatically.

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer

the five characteristics of adolescence are biological growth and development, and undefined status, increased decision making, increased pressure and the search of self.