Examlex
The mass number of an atom of 118Xe is _ .
Contaminated Food
Food that has been tainted with harmful bacteria, viruses, chemicals, or other substances, making it unsafe to eat.
Paroxysmal Stage
a period in the course of a disease characterized by a sudden onset or intensification of symptoms.
Whooping Cough
A highly contagious bacterial infection of the respiratory system characterized by severe coughing spells that end in a 'whooping' sound.
Pertussis
A highly contagious bacterial infection of the respiratory tract, also known as whooping cough, characterized by severe coughing spells that can last for weeks.
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