Workers on a movie set are stacking fake glass to use in a scene. The diagram above shows the pieces of fake glass before they touch each other. Use the information in the diagram to answer the question. Compare the temperatures of the four pieces of fake glass before they touch. Which pieces are warmer, which pieces are cooler, and are any pieces the same temperature as each other? After the top pieces and bottom pieces have been touching for a while, will the two bottom pieces be the same temperature or different temperatures? Explain how their temperatures will compare, and why.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

you need to stop taking that class