Examlex
Enter the chemical symbol of the element in the blank.
An element in period 3 has the Lewis structure:
X should be replaced with what chemical symbol?
Chemical symbol:
_____________________.
Inhospitable
Referring to environments that are harsh, difficult to live in, or unwelcoming to human settlement or certain forms of life.
Insecticide
Chemical substances used to kill or manage the population of insects, often employed in agriculture, public health, and homes.
Aerial Spraying
The application of pesticides or other chemicals from aircraft to control pests and diseases in crops or to control mosquito populations.
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