Noble gases' outer shells are already filled with 8 electrons (other than He, which has 2, but is still filled and stable). Atoms bond with other elements to fill their outer shell, but they don't need to do that and are already stable.
The answer is d because in both sides there are 1 magnesiums 1 oxygens 2 lithiums and 2 chlorines
Aluminum is an element. If there's nothing else in the foil
besides aluminum, then the foil is entirely an element.
Answer:
I choose D option because may be it's correct
B. He would be considered an Organic Chemist since Organic Chemistry is the study of Carbon and its compounds.