PLEASE HELP THIS IS URGENT Magnesium has several isotopes. Atoms of three of these isotopes have 12, 13, and 14
neutrons, respectively. What is the atomic number, mass number, and number of protons and electrons of each of magnesium’s isatopes?

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 does x represent in the formula for the compound xcl4?

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons