Question

li+
express your answer in complete form, in order of increasing orbital. for example,
1s²2s² would be entered as 1s^22s^2.

Explanation:

Step1: Determine the atomic number of Li

The atomic number of Li (lithium) is 3.

Step2: Consider the ion charge

\(Li^{+}\) has lost one electron. So it has \(3 - 1=2\) electrons.

Step3: Write the electron - configuration

The first orbital is \(1s\), which can hold 2 electrons. So the electron - configuration of \(Li^{+}\) is \(1s^{2}\).

Answer:

\(1s^{\wedge}2\)