What is is the variable and experimenter chooses to change

Astudent made the lewis dot diagram of a compound shown. what is the error in the lewis dot diagram? a)an o atom should transfer all of its six electrons to mg because the formula is mgo b) both electrons of mg should be transferred to one o adam because the formula is mgo c) the electrons should be transferred from each o add him to capital mg because mg has fewer electrons d) the number of dots around mg should be four because it has to transfer two electrons to each o

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

What will most likely happen when two bromine atoms bond together?