Answer:
The rows on the periodic table are called periods. All the elements in a period have valence electrons in the same shell. The number of valence electrons increases from left to right in the period. When the shell is full, a new row is started and the process repeats.
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Answer:
New predators and not a lot of food
Explanation:
If new predators come than they can eat the insects and go extinct. Also if there is not a lot if food than the will die because they have nothing to eat.
Answer:Propanone is the IUPAC name for acetone, and butanone is the name for ethyl methyl ketone.
Explanation:
Answer:
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