Concept explainers
(a)
Interpretation: The fourth-row elements in the periodic table are to be classified as a metal, a metalloid or a nonmetal.
Concept introduction: The elements in the periodic table are divided into three classes; metals, metalloids and nonmetals. The elements should be a good conductor of heat and electricity and be ductile and malleable; these are the conditions for the elements to be metals. The elements that are more like nonmetals but under certain conditions, some of the elements can be made to conduct electricity are considered to be metalloids. The elements which are poor conductor of heat and electricity are said to be nonmetals.
To determine: The classification of the given element
(b)
To determine: The classification of the given element
(c)
To determine: The classification of the given element
(d)
To determine: The classification of the given element
(e)
To determine: The classification of the given element
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