C. Negative because since the neutral atom stands at 0 and positive ions are 1+ and electrons are negative if it gains the electron ( negative ) it will become negative.
Answer:
30
Step-by-step explanation:
238,900/7,917=30.1755
Where the picture or numbers at?
C=10pi
C=2(r)pi so r=5
A=pi(r)^2
so A=pi(5)^2
A=25pi
Your answer is 1.0 good luck hope i helped u ☺