Which of the following shows three elements in order of decreasing conductivity? - o, ge, mn -ge, o, mn -mn, ge, o -mn, o, ge

You can easily answer this if you know the periodic trends. For the property of electrical conductivity, it decreases across a period and decreases also down a group. Thus, the most conductive element must be Mn, while the least conductive one is Ge. So, the answer is: -Mn, O, Ge

The correct answer is option D which is the decreasing order of conductivity is Mn, O, Ge.

Explanation:Conductivity of an element is the ability of atoms of an element to pass energy.There are many types of conductivities like electrical conductivity, thermal conductivity etc.So this ability of atom depends actually upon the number of valence electrons in outer shell and feasibility to lose electrons.According to periodic table, conductivity of element decreases across the period and down the group.Hence the conductivity of Mn is high than O and Ge.The O is higher conductivity after that Ge.Ge is least conductive element in list.

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