Below is the predicted nmr spectra of a compound with molecular formula c8h10. identify the compound and label the peaks. why might you see trace peaks of this compound in the nmr you submitted to your ta for the diels-alder experiment?

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.  

catya that's not even a b or c

c. orbital shape i hope this is correct