USL Uf the elements in the Periodic Table are (circle onel: metals nonmetal any
ID: 541297 • Letter: U
Question
USL Uf the elements in the Periodic Table are (circle onel: metals nonmetal any of the groups of elements have family names. These names are based o haracteristics of the families. Identify the following families in the Periodic Ta The alkali metals are in Group A . The alkaline earth metals are in Group TA . The halogen group is Group_V The inert or noble gases are in Group L The elements found on the Zintl border on the Periodic Table are called metallods sing your knowledge of how to read the periodic table and the information re, answer the following questions: Chlorne , tho third period.Explanation / Answer
The group number of an element in the periodic table is equal to the number of electron(s) present in the valence shell of the element.
The alkali metals have only one electron in the valence shell which can be easily lost to form compounds. Hence, the alkali metals are in Group I.
The alkaline earth metals have two electrons in the valence shell and hence, they belong to Group II.
The halogens have seven valence electrons; therefore, they belong to Group VII.
The inert or noble gases have eight electrons in the valence shell; hence they occur in Group VIII. These elements cannot lose or gain electrons to form compounds; hence they are called inert.
The elements occurring along the Zintl border have properties of both metals and non-metals. Hence these elements are called Metalloids (metal-like) or semi-metals.
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