Answer:
Noble gases
Explanation:
Noble steam, any of the seven chemical elements that make up the periodic table in group 18.
Within normal conditions, noble gases are colorless, odorless, tasteless, and nonflammable gases. The noble gases are grouped according to their boiling point in the periodic table. Noble gases, from incandescent lamps to excimer lasers, are commonly used in distinct areas.
I think this is false, but I’m not 100% sure.
<span>A certain virus infects one in every 200 people. A test used to detect the virus in a person is positive 90% of the time if the person has the virus and 5% of the time if the person does not have the virus. (This 5% result is called a false positive.) Let A be the event "the person is infected" and B be the event "the person tests positive".
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