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4 years ago

Pick one option:

Chemistry

1 answer:

Dmitry [639]4 years ago

4 0

Answer:

Li⁺

Explanation:

Li⁺ ions has a noble gas electron configuration because it resembles that of He.

To have a noble configuration, electrons in the outermost shell must completely fill their respective orbitals.

Li⁺ is an ion that has lost one electron from the usual number of 3 thereby remaining 2 electrons.

The electronic configuration is given as;

Li⁺ 1s²

The S orbital can hold a maximum number of just two electrons.

Helium atom has two electrons with electronic configuration of 1s²

Therefore Li⁺ = 1s² = He

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