Fe(s) is already one atom and it is gas. why do we call it a solid?

Different isotopes indicate that an element will have different numbers of

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

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.