Several common non-metal elements exist as diatomic molecules The name of the el

Question

Several common non-metal elements exist as diatomic molecules The name of the element refers to the diatomic molecule. For example, "hydrogen" refers to H_2, and "oxygen" refers to O_2. (If we mean the atom, we say atomic hydrogen or atomic oxygen). The common diatomic elements are the four halogens, oxygen, nitrogen and hydrogen Exercise: List the names and formulas of the 7 elements that exist as diatomic molecules: Exercise: Write the following sentences using symbols and formulas instead of the underlined names of the gases. Dry air contains about 79% nitrogen and 21% oxygen, with small amounts of carbon dioxide, neon, and argon. Polluted air may contain small amounts of sulfur dioxide, sulfur trioxide, nitrogen dioxide, dinitrogen monoxide, chlorine, ammonia, methane, and carbon monoxide. Exercise: Write the following sentences using names instead of symbols and formulas Probably the most important element found uncombined in nature is O_2. O_2, is quite reactive, forming compounds with the halogens F2, Cl_2, . Br, and I_2. O_2, forms two compounds with H_2 Following the usual rules of nomenclature, the most common oxide of hydrogen (H_2O) would be named dihydrogen monoxide. The other oxide of hydrogen is H_2O_2. O_2 forms a series of compounds with N_2, . many of which are atmospheric pollutants, including NO, N_2O, NO_2, N_2O_4, N_2O_5.

Explanation / Answer

1.Hydrogen (H2),Nitrogen (N2),Oxygen (O2),Fluorine (F2),Chlorine (Cl2),Iodine (I2),Bromine (Br2)

2. Dry air contains about 79% N2 AND 21% O2 with small amount of CO2, Ne, Ar. Polluted air contain small amounts of SO3,NO2,N2O,CL2,NH3, CH4 and CO.

3.Probably the most important element found uncombined in nature is oxygen, oxygen is quite reactive forming coumpounds with the halogens fluorine, chlorine, bromine and iodine. Oxygen forms compound s with hydrogen. Following the usual rules of nomenclature. the most common oxide of hydrogen water would be named dihydrogen monoxide. The other oxide of hydrogen is hydrogen peroxide. Oxygen forms series of compounds with nitrogen, many of which are atmospheric pollutants, including nitrogen monoxide, Nitrous oxide, Nitrogen dioxide,Dinitrogen tetroxide,Dinitrogen pentoxide.

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