Examlex
Refer to the SeF4 molecule.
-What is the electron arrangement around the central atom?
Poison
Substances that cause harm, illness, or death when ingested, inhaled, or absorbed into the body in sufficient quantities.
Toxin
A harmful substance produced within living cells or organisms; can cause disease when introduced into the body tissues.
Toxic/o
A prefix meaning "poison," used in medical terminology to refer to substances that are harmful or deadly.
Sight
The ability of the eyes to perceive visual stimuli, one of the five senses.
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