Hydrogen would be one that I'd pick out just because it doesn't exactly have many similar properties to the alkali metals. At least helium is gaseous (as are the noble gases).
Helium is not grouped with others in a family because it is part of the noble gases group. Its usual atomic structure consists of 2 electrons in its innermost shell and a total of 2 electrons overall.
hydrogen
Metals are grouped together to the left of the Periodic table.
they are in the woodwind family
Im think yes im 80% sure
The classification level between genus and order is "family." In the taxonomic hierarchy, species are grouped into genera, genera are grouped into families, and families are grouped into orders.
The element yttrium is found in the transition metal location on the periodic table and is very similar to the lanthanides so it has been grouped with them as a rare earth element.
element 16
Related genera are grouped into a higher taxonomic category called a family. In biological classification, a family is a higher level grouping that encompasses multiple genera sharing similar characteristics and evolutionary relationships.
Hydrogen's chemical properties are unique and do not fit neatly into a specific group on the periodic table. It does not exhibit consistent trends or behaviors like the elements in other families. Additionally, hydrogen can form both positive and negative ions, possessing properties of both metals and nonmetals.
Dobereiner was responsible for grouping element into triads. He grouped 3 element with same properties together.
The element family that iron belongs to on the periodic table is the transition metals family. Other elements in this family include cobalt and nickel.