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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20
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21
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22
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23
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Detailed explanation-1: -In the above table nonmetal elements are H, He, C, N, O, F, Ne, P, S, Cl, Ar, Se, Br, Kr, I, Xe, At and Rn.
Detailed explanation-2: -In modern periodic table there are 22 non-metals in which there are 11 gases, 1 liquid and 10 solid. Bromine occurs in the state of liquid and hydrogen, nitrogen, oxygen, chlorine etc are found in gaseous forms. But carbon, sulphur, phosphorous, iodine etc solid non-metals.
Detailed explanation-3: -The number of non-metals is 18. The number of metalloids is 7 and the number of metals is 93. The non-metal bromine is a liquid. The non-metals carbon, phosphorus, sulfur, selenium, and iodine are solids.
Detailed explanation-4: -Hydrogen, carbon, nitrogen, oxygen, phosphorus, arsenic and selenium are the non-metallic elements in the periodic table.
Detailed explanation-5: -Hydrogen (sometimes) Carbon. Nitrogen. Oxygen. Phosphorus. Sulfur. Selenium. Fluorine. More items •25-Feb-2020