Question

₁₃A1, ₁₄Si, ₁₁Na, ₁₂Mg, ₁₆S Which of the above elements has the highest metallic character? Write down the electronic configuration of the elements from the given atomic numbers. Answer the question with explanation

Answer 1

The elements having the highest metallic character is Na. 

The elements given in the questions lie in the 3rd periods. 
The correct sequence of these elements given in the questions are ⇒

Na > Mg > Al > Si > S

Now, we know that in the Periods, the metallic character decreases if we move from left to rights. 

Since, in this period (3), Na lies first thus it will have the high Metallic character and S lie in the last the it have the least metallic characters. 


The Electronic Configuration given in the questions are ⇒ 

Al = 1s², 2s², 2p⁶, 3s², 3p¹
Si = 1s², 2s², 2p⁶, 3s², 3p²
Na = 1s², 2s², 2p⁶, 3s¹
Mg = 1s², 2s², 2p⁶, 3s²
S = 1s², 2s², 2p⁶, 3s², 3p⁴



Hope it helps.