Question

Question 9 (1 point)

Answer 1

Noble gases

Explanation:

     Electronic configuration 1s²  2s²   2p⁶

 The element belongs to the group of the noble gases.

• The noble gases have complete outer shell configuration of their atoms.
• we can infer that the configuration above is for an element in the p-block because the last sub-level filled is the p-orbital.
• The elements therefore belongs to the p-block
• The block is from group 111A to O
• Only the halogens and noble gases fits this picture from the option.
• The outer most p-subshell have three orbitals requiring 6 electrons to fill them up.
• This makes a complete and stable configuration.
• The highest energy level of 2 is also made up of 8 electrons, an octet.
• This is why we can conclude that they are noble gases.

Learn more:

Noble gas brainly.com/question/1781595

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