In the periodic table, the electrical and thermal conductivities are properties of elements that
-
decrease across the period and increase down the group
- increase across the period and decrease down the group
- decrease across the period and down the group`
- increase acrosss the period and down the group
The correct answer is: A
Explanation
In the periodic table, electrical and thermal conductivities of elements decrease across the period and increase down the group.
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