Which of the following arrangements indicates the correct decreasing order of ionization energy of period 3 elements?
-
A.
Na, Al, P, Cl -
B.
Cl, P, Al, Na -
C.
Na, P, Cl, Al -
D.
Al, Na, P, Cl
Correct Answer: Option B
Explanation
As you move across a period, first ionization energy increases.