GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Metals
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Non metals
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Metalloids
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None of the above
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Detailed explanation-1: -Several of the nonmetals are gases in their elemental form. Elemental hydrogen (H, element 1), nitrogen (N, element 7), oxygen (O, element 8), fluorine (F, element 9), and chlorine (Cl, element 17) are all gases at room temperature, and are found as diatomic molecules (H2, N2, O2, F2, Cl2).
Detailed explanation-2: -Nonmetals exist in all three states of matter. The majority are gases, such as nitrogen and oxygen. Bromine is a liquid. A few are solids, such as carbon and sulfur.
Detailed explanation-3: -Chlorine is a gaseous non-metal.
Detailed explanation-4: -Five non-metals are solids at room temperature: iodine, carbon, phosphorous, sulfur and selenium. One non-metal is a liquid. The other 11 non-metals exist as gases at room temperature.