Question

Question #c5ea9

Answer 1

Aluminium has the highest electrical conductivity among the options.

Explanation:

Electrical Conductivity of Sodium : `2.1 * 10^7` S/m [siemens per metre]

Electrical Conductivity of Magnesium : `2.3 * 10^7` S/m

Electrical Conductivity of Aluminium : `3.8 * 10^7` S/m

To know about Electrical Conductivity in detail, [click here.](https://en.wikipedia.org/wiki/Electrical_resistivity_and_conductivity)

For the values of Electrical Conductivity of all the elements, [click here.](http://periodictable.com/Properties/A/ElectricalConductivity.an.html)

Hope this helps.