Question

Which of them is covalent solid
diamond, iron, salt, copper

Answer 1

Diamond. In a diamond the carbon - carbon atom form a extremely strong covalent bond which is almost unbreakable. Diamond is the hardest naturally occuring substance.

In a diamond the carbon atoms unite together by sharing electrons and forming a covalent bond. Usually covalent bonds are considered weak but diamond is an exception.

Each carbon atom forms a bond with three other carbon atoms in a tetrahedron. The structure of the diamond makes it almost unbreakable.

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