GK
ELEMENTS COMPOUNDS SUBSTANCES METALS AND NON METALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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10
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11
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12
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13
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Detailed explanation-1: -The elements that are present in gaseous state are hydrogen, helium, nitrogen, oxygen, fluorine, neon, chlorine, argon, krypton, xenon and radon. So, there are totally 5 solids, 1 liquid, and 11 gaseous elements.
Detailed explanation-2: -One non-metal is a liquid. The other 11 non-metals exist as gases at room temperature.
Detailed explanation-3: -Chlorine is a gaseous non-metal.
Detailed explanation-4: –Hence an example of gaseous non-metal is Oxygen.
Detailed explanation-5: -10 non-metals are solids: Important solid non-metals are: Boron (B), Carbon (C), Silicon (Si), Phosphorus (P), Arsenic (As), Sulphur (S), Iodine (I). 11 non-metals are gases: These are: Hydrogen (H), Nitrogen (N), Oxygen (O), Fluorine (F), Neon (Ne), Chlorine (Cl), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn).