False because nuclear fission is used on uranium in nuclear power station and this reaction is continuous since a neutron hits a uranium atom and splits it. Then 2-3 neutrons are released which continues the cycle or hitting other uranium atoms. If this reaction isn't contained, it could get out of control and become a nuclear bomb. So it can't be burned like wood nor coal.
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The formula for sulfur dichloride is SCl2
It is a solid substance that has a conductivity between that of an insulator and that of most metals, either due to the addition of an impurity or because of temperature effects
In an arithmetic progression, consecutive terms differ by the same value.
So, we have

which reflects the fact that the difference between P and 6 must be the same than the one between P and 14.
The equation solves to

And in fact, if you start with

every pair of consecutive terms differ by 4.