Question

Assuming the substance is one of those listed in the table presented in this lesson, what is the identity of the substance?

Answer 1

The identity of the substance is Iron.

Properties of Iron

Chemical properties

• The element iron has the atomic number 26 and the symbol Fe
• Electronic configuration of Fe is [AR] 3d6 4s2
• The atomic weight of Iron is 55.847
• The element iron belong to the group VIII of the periodic table

• It is the fourth most prevalent element in the crust of the world
• It is a highly reactive element as it gets rusted readily in the moisture of air

Physical properties

• It is a heavy metal in the first transition series  
• The color of iron is silvery grey
• High malleability and ductility
• It has a strong electrical conductivity.  

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Answer 2

Answer: Iron

Explanation: IRON : Iron is an element with symbol Fe and atomic number 26 2) it is the fourth most common element in earth's crust 3) It is a heavy silvery grey metal belongs to the first transition series. 4) High ductility and malleability 5) It is a good conductor.