Answer:
B. The Shell
Explanation:
The shell covers and surrounds whats inside. It protects it!
k=.240/(.4)^2=1.5 assuming [A]2 means [A] squared
3rd option please and good luck hope you pass...........
Answer:
nonmetal
________ is an atom that gains electrons; it's valence electrons is similar to a noble gas.
Explanation:
Because non metal like chlorine gain one elctron and attain electronic configuration of noble gas Argon