An element whose atoms have the electron configuration 2-8-18-1 is А
a transition element
B
a noble gas
an alkali metal
D
an alkaline earth metal

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?

What are the constituent metals of stainless steel?

How many grams of phosphorus are contained in 5.09 moles of phosphorus?