All of the following are properties used to classify elements as metals, nonmetals & metalloids EXCEPT -texture
-conductivity
-luster
-malleability

texture

Explanation:

Elements have been classified into three categories namely; metals, non-metals and metalloids. This classification was done based on certain characteristics or properties possessed by each element. Some of the characteristics used are: lustre, malleability, conductivity, melting point, boiling point etc.

- Metals are very good conductors of heat and electricity whereas metalloids and nonmetals are not.

- Metals and metalloids shine when polished i.e. they are lustrous, whereas nonmetals don't

- Metals are malleable i.e. can be beaten into sheets.

Texture is not a property used to classify metals and metalloids.

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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