Seven
Elements do not contain more than 7 electron shells.
<span>'Do all liquids evaporate at the same rate
that would be false
</span>
He can conclude that his experiment has very low precision.
<h3>What is Precision ?</h3>
Precision is defined as the degree of refinement with which an operation is performed or a measurement .
Precision is how close the exact answers are together.
As, the answers are increasing in time.
None of the answers are similar to one another.
Hence, He can conclude that his experiment has very low precision.
Learn more about Precision here ;
brainly.com/question/27845433
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