Answer:
Na has the most similar configuration.
Explanation:
Na electron configuration: 1s²2s²2p⁶3s¹ or [Ne] 3s₁
Mg electron configuration: 1s²2s²2p⁶3s² or [Ne] 3s²
Be electron configuration: 1s²2s² or [He] 2s²
This is because Na and Mg are right next to each other in the same period (horizontal).
The snake,raccoon, and preying mantis
Answer: A
FeCl3 + 3 NaOH -> Fe(OH)3 + 3 NaCl
The awnser is central canal the third one
