Iron has a high melting point.
Which statement explains the high melting point of iron?
Each iron cation has a strong electrostatic attraction to a ‘sea’ of delocalised electrons.
2 )
In every iron atom there is a strong attraction between the protons and the electrons.
3 )
Iron has the same structure as diamond which has a very high melting point.
4 )
Iron is an alloy and alloys have different physical properties from the elements they contain.
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