Question

Which element is in the same group as lithium (Li)?

1) carbon (C)
2) potassium (K)
3) chlorine (Cl)
4) magnesium (Mg)

Answer 1

Potassium (K) is in the same group as lithium (Li), Group 1: The Alkali Metals, which includes other elements such as sodium (Na), rubidium (Rb), cesium (Cs), and francium (Fr).

Step-by-step explanation:

The element in the same group as lithium (Li) would be potassium (K). Both lithium and potassium are part of Group 1: The Alkali Metals of the periodic table. This group of elements, which also includes sodium (Na), rubidium (Rb), cesium (Cs), and francium (Fr), are known for being soft, shiny, and highly reactive. These metals conduct heat and electricity well and have similar chemical properties.

For instance, all alkali metals form compounds with oxygen in a ratio of two of their atoms to one oxygen atom. While elements like carbon (C), chlorine (Cl), and magnesium (Mg) also exhibit unique and similar properties within their respective groups, they do not belong to the same group as lithium.