Answer:
[tex]Lithium=Li2s^1\\Sodium=Na3s^1\\Potassium=K4s^1\\Rubidium=Rb5s^1\\Cesium=Cs6s^1\\Francium=Fr7s^1[/tex]
Explanation:
When it comes to electron configuration and orbitals, it's important to first identify what exactly we are trying to identify. Below is a given example:
[tex]He1s^2[/tex]
[tex]He=element[/tex]
[tex]1=level[/tex]
[tex]s=orbital[/tex]
[tex](exponent)^2=electrons[/tex]
Looking at the periodic table, identify the alkali metal family on the periodic table, or group one elements:
[tex]Lithium=Li2s^1\\Sodium=Na3s^1\\Potassium=K4s^1\\Rubidium=Rb5s^1\\Cesium=Cs6s^1\\Francium=Fr7s^1[/tex]
Notice how each configuration has an exponent of [tex]1[/tex], representative of a single electron in their s-orbital.