Write the symbol of magnesium and iron?

The symbol of magnesium is mg and iron is Ir

Mg - Magnesium

Fe - Iron

Explanation:

Magnesium - It is "Mg" because in the periodic table its atomic number is 12 , and atomic mass is 24.305 u .

Iron - It is "Fe" because in the periodic table its atomic number is 26 , and atomic mass is 55.845 u .  

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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