Electronegativity is a measure of an atom's ability to attract shared electrons to itself. On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group.
B. He would be considered an Organic Chemist since Organic Chemistry is the study of Carbon and its compounds.
Hept for 7, hence the number is seven.
The Answer is D: Reactor products charge huge batteries.