Q. A neutral atom of an element has 2 electrons in the first energy level, 8 in the second energy level and 8 in the third energy level. This information does not necessarily tell us:
A. the atomic number of the element.
B. anything about the element’s chemical properties.
C. the total number of electrons in s orbitals.
D. the number of neutrons in the nucleus of an atom of the element.
Answer: the number of neutrons in the nucleus of an atom of the element.