Respuesta :
Answer:
Group 1
Explanation:
In group 1
K and Na are highly reactive and are soft that we can even cut them with a knife
Alkali metals are observed to be extremely reactive, highly conductive, soft, and glossy elements.
What are metalloids?
The elements of the periodic tables that behave as metal, as well as the nonmetal in some chemical or physical aspects, are known as metalloids. Some examples of metalloids are Boron, silicon, germanium, arsenic, antimony, tellurium, etc.
The solitary valence electron results in weak bonding between the atoms of the element, making it soft.
The elements will react with other elements in order to shed their lone valence electron in order to become stable.
Thus, an element is highly conductive, highly reactive, soft, and lustrous. the element most likely belongs to group 1.
Learn more about metalloids from hee the link given below
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