In what family would you classify hydrogen explain your choice?
Simply so, in what family would you classify cesium?
Cesium is classified as an "Alkali Metal" and located in Group 1 elements of the Periodic Table. An Element classified as an Alkali Metal is a very reactive metal that does not occur freely in nature. Alkali metals are soft, malleable, ductile, and are good conductors of heat and electricity.
In respect to this, in what family would you classify radium?
The members of the alkaline earth metals include: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra). As with all families, these elements share traits. While not as reactive as the alkali metals, this family knows how to make bonds very easily.
Hydrogen is classified as a non-metal based on its physical properties. Metals, located to the left of the stairstep elements, have the properties of being shiny, conductive, malleable (can be made into sheets) and ductile (can be made into wire). Since hydrogen has none of these properties it is obviously not a metal.