Question

which of the following are closely related to the electron configuration of an element? A. Atomic Number B. Molecular Weight C. Chemical Reactivity D. Valence Electrons

Answer 1

NO: A and B

YES: C and D

Step-by-step explanation:

A. Atomic Number No. This is the number of protons in the nucleus.

B. Molecular Weight No. Protons + Neutrons

C. Chemical Reactivity Yes. The electron configuration allows prediction of reactivity with other elements.

D. Valence Electrons Yes. The most active electrons is bonding.