Here's what you need to know:
* Lithium is an alkali metal. This means it's in Group 1 of the periodic table.
* Elements in the same group (vertical column) have similar chemical properties. This is because they have the same number of valence electrons (electrons in their outermost shell).
Therefore, elements that have similar properties to lithium are the other alkali metals:
* Sodium (Na)
* Potassium (K)
* Rubidium (Rb)
* Cesium (Cs)
* Francium (Fr)
Important Note: While these elements share similar properties, the degree of similarity decreases as you move down the group. For example, lithium is a much softer and less reactive metal than sodium.
Let me know if you'd like to know more about the properties of lithium or any of the other alkali metals!