select the correct answer. what is the noble gas electron configuration of aluminum (al)? a. ne 3s² 3p¹ b…

select the correct answer. what is the noble gas electron configuration of aluminum (al)? a. ne 3s² 3p¹ b. ne 2s² 2p¹ c. ar 3s² 3p¹ d. ar 1s² 2s² 2p⁶ 3s² 3p¹

select the correct answer. what is the noble gas electron configuration of aluminum (al)? a. ne 3s² 3p¹ b. ne 2s² 2p¹ c. ar 3s² 3p¹ d. ar 1s² 2s² 2p⁶ 3s² 3p¹

Answer

Answer:

A. [Ne] 3s² 3p¹

Explanation:

Step1: Determine atomic number of Al

Aluminum (Al) has atomic number 13.

Step2: Identify noble - gas core

Neon (Ne) has atomic number 10. It is the nearest noble gas with fewer electrons than Al.

Step3: Write remaining electron configuration

After using the Ne core, there are 3 remaining electrons. They are arranged as 3s² 3p¹. So the noble - gas electron configuration of Al is [Ne] 3s² 3p¹.