| 单词 | diatomic |
| 例句 | Thinking in terms of overlapping atomic orbitals is one way for us to explain how chemical bonds form in diatomic molecules. Chemistry 2019-02-14T00:00:00Z Splitting two molecules is required to form one molecule of diatomic O2 gas. Biology for AP Courses 2022-06-09T00:00:00Z Gases like oxygen often form diatomic molecules by sharing valence electrons. An Introduction to Geology 2017-01-01T00:00:00Z But what about diatomic compounds like oxygen gas? Stop the science training that demands ‘don’t ask’ 2019-11-18T05:00:00Z To grow crops, farmers require fertilizers rich in nitrogen compounds, but not the diatomic nitrogen molecules found in air, which plants cannot metabolize. A world without DNA and black holes: The state of science the last time the Chicago Cubs won the World Series 2016-10-26T04:00:00Z The halogens form diatomic molecules in which each atom is involved in only one bond. Chemistry 2019-02-14T00:00:00Z Ammonia decomposes when it absorbs high-energy uv radiation, but diatomic nitrogen does not. Biology for AP Courses 2022-06-09T00:00:00Z The reason the comet is glowing green is because of molecules of diatomic carbon in its head, which are fluorescing in ultraviolet sunlight in the near-vacuum of space. Once-In-A-Lifetime Chance To Spot The Green Glow Of Comet Lovejoy 2015-01-09T05:00:00Z The result of such a close relationship is a “photonic molecule,”whose optical modes bear a strong resemblance to the electronic states of a diatomic molecule like hydrogen. And Let There Be "Molecules" of Light 2013-10-14T20:45:24.920Z In 1909, German chemist Fritz Haber would discover a process to convert methane and the diatomic nitrogen of the air into water and ammonia, a viable fertilizer. A world without DNA and black holes: The state of science the last time the Chicago Cubs won the World Series 2016-10-26T04:00:00Z At ordinary temperatures, hydrogen is a colorless, odorless, tasteless, and nonpoisonous gas consisting of the diatomic molecule H2. Chemistry 2019-02-14T00:00:00Z Moreover, it was fully expected that the new element would behave like a typical halogen to form diatomic molecules and that it would have a low boiling point. A Tale of 7 Elements: Element 85 Astatine [Excerpt] 2013-07-05T14:15:00.623Z Moreover, in a paper published in April, Hemley and his colleagues report signs that hydrogen squeezed up to 360 GPa holds on to its diatomic character and fails to morph into a monatomic metal. Metallic hydrogen: Hard pressed 2012-06-13T17:20:27.127Z Then, if the mix of waste is correct, the carbon and oxygen atoms involved recombine to form carbon monoxide and the hydrogen atoms link up into diatomic hydrogen molecules. Waste disposal: Turning garbage into gas 2011-02-03T11:11:23Z This table has enabled scientists to predict the properties of diatomic molecules successfully. The Evolution of the Periodic System 2011-01-21T23:45:05.210Z Because there are twice as many hydrogen atoms as oxygen atoms and both elements are diatomic, there is twice the volume of hydrogen produced at the cathode as there is oxygen produced at the anode. Chemistry 2019-02-14T00:00:00Z The molecule of iodine, for example, is monatomic at 1200� C., but becomes diatomic at the ordinary temperature. The Mechanism of Life For a diatomic gas, the molecular heat would be nearly five calories, or the atomic heat of a gas in the diatomic state would be 2.5. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" Oxygen, nitrogen, hydrogen and carbon monoxide have the value 1.4; these gases have diatomic molecules, a fact capable of demonstration by other means. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" All are diatomic, diamagnetic and positive; the corresponding group consists of sulphur, selenium and tellurium, also all diatomic and diamagnetic, but negative. Occult Chemistry Clairvoyant Observations on the Chemical Elements A molecule of oxygen, O2, contains two oxygen atoms; the subscript 2 in the formula must be used to distinguish the diatomic molecule from two single oxygen atoms. Chemistry 2019-02-14T00:00:00Z Finally, the magnesium chloride is melted and electrolyzed to yield liquid magnesium metal and diatomic chlorine gas. Chemistry 2019-02-14T00:00:00Z Gaseous butane, C4H10, reacts with diatomic oxygen gas to yield gaseous carbon dioxide and water vapor. Chemistry 2019-02-14T00:00:00Z Hence it may be inferred that this value is typical for diatomic molecules. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" It is worthy of notice that in diatomic elements four funnels open on the faces of tetrahedra; in triatomic, six funnels on the faces of cubes; in tetratomic, eight funnels on the faces of octahedra. Occult Chemistry Clairvoyant Observations on the Chemical Elements H2 is a molecular formula; it represents a diatomic molecule of hydrogen, consisting of two atoms of the element that are chemically bonded together. Chemistry 2019-02-14T00:00:00Z Solid potassium chlorate, KClO3, decomposes to form solid potassium chloride and diatomic oxygen gas. Chemistry 2019-02-14T00:00:00Z Write separate equations for the reactions of the solid metals magnesium, aluminum, and iron with diatomic oxygen gas to yield the corresponding metal oxides. Chemistry 2019-02-14T00:00:00Z What is the limiting reactant in a reaction that produces sodium chloride from 8 g of sodium and 8 g of diatomic chlorine? Chemistry 2019-02-14T00:00:00Z For a diatomic molecule, the atomic orbitals of one atom are shown on the left, and those of the other atom are shown on the right. Chemistry 2019-02-14T00:00:00Z Solid aluminum metal reacts with solid diatomic iodine to form solid Al2I6. Chemistry 2019-02-14T00:00:00Z At room temperature, nitric oxide is a colorless gas consisting of diatomic molecules. Chemistry 2019-02-14T00:00:00Z Nitrogen in the atmosphere exists as very stable diatomic molecules. Chemistry 2019-02-14T00:00:00Z The bond energy for a diatomic molecule, DX–Y, is defined as the standard enthalpy change for the endothermic reaction: Chemistry 2019-02-14T00:00:00Z For diatomic molecules, there is only one bond, so its bond dipole moment determines the molecular polarity. Chemistry 2019-02-14T00:00:00Z The decomposition of solid potassium chlorate leads to the formation of solid potassium chloride and diatomic oxygen gas. Chemistry 2019-02-14T00:00:00Z In a diatomic molecule with two identical atoms, there is no difference in electronegativity, so the bond is nonpolar or pure covalent. Chemistry 2019-02-14T00:00:00Z The net energy change would be zero, so there is no driving force for helium atoms to form the diatomic molecule. Chemistry 2019-02-14T00:00:00Z In fact, helium exists as discrete atoms rather than as diatomic molecules. Chemistry 2019-02-14T00:00:00Z Obtain the molecular orbital diagram for a homonuclear diatomic ion by adding or subtracting electrons from the diagram for the neutral molecule. Chemistry 2019-02-14T00:00:00Z The decomposition of solid barium nitrate leads to the formation of solid barium oxide, diatomic nitrogen gas, and diatomic oxygen gas. Chemistry 2019-02-14T00:00:00Z Using the MO diagrams shown in Figure 8.37, we can add in the electrons and determine the molecular electron configuration and bond order for each of the diatomic molecules. Chemistry 2019-02-14T00:00:00Z We can describe the electronic structure of diatomic molecules by applying molecular orbital theory to the valence electrons of the atoms. Chemistry 2019-02-14T00:00:00Z It is possible to oxidize the halide ions to free diatomic halogen molecules by various methods, depending on the ease of oxidation of the halide ion. Chemistry 2019-02-14T00:00:00Z |
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