Group 1 of the periodic table consists of hydrogen and the alkali metals. ...
Group 2 consists of the alkaline Earth metals. ...
Groups 3–12 contain transition metals. ...
Groups 13–16 each contain at least one metalloid. ...
Group 17 contains halogens. ...
Group 18 consists of noble gases.
Answer:
Groups are numbered 1–18 from left to right. The elements in group 1 are known as the alkali metals; those in group 2 are the alkaline earth metals; those in 15 are the pnictogens; those in 16 are the chalcogens; those in 17 are the halogens; and those in 18 are the noble gases.
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