PLEASE HELP ME I DONT UNDERSTAND WHAT MY TEACHER IS SAYING I will mark brainliest

Amount of liquid measured in l or lm

How many atoms are there in 5.70 mol of mg

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive