1s2 2s2 2p6 3s2 3p1 How many resonance structures can be drawn for O3? 1p Small carbon atoms will be seen throughout the lattice. The secret to steel is getting a precise and even carbon concentration, forming the right phase at the correct heat, quenching at the correct speed without introducing impurities, and then tempering to adjust the hardness / brittleness ratio. C) N2 Steel is an alloy consisting of Fe with a small amount of C. Elemental Cr can be added to steel to make the steel less likely to rust; Cr atoms react with oxygen in the air to form a nonreactive layer of chromium oxide on the surface of the steel, preventing the oxidation of underlying Fe atoms. is very reactive as a metal As we discussed earlier shows the viewing screen in a double-slit experiment with monochromatic light. Calculate the radius of the copper atom, given that copper has an fcc crystalstructure, a density of 8.89 g/cm3, and an atomic mass of 63.55 g/mole. (D) SO2 Determine which of the following "THREE RULES" have been, A:Pauli exclusion principle: What is the hybridization of the carbon atom in a molecule of ethyne, represented above? Q:What is the largest order of any element in U(900)? 5 electrons copper and zinc atoms have the same atomic radius 135 picometers. Mild steel: Carbon and iron: . By far the most widely used material for building the worlds infrastructure and industries, it is used to fabricate everything from sewing needles to oil tankers. hb```,@( Carbon atoms fill the spaces between iron atom, making the structure % more rigid. the elements C and Se have the same electronegativity value, 2.55. which of the following claims about the compound that forms from C and Se is most likely to be true? Of the following single bonds, which is the LEAST polar? 0/4 Submissions Used (B) BrCl Steel contains atoms of other elements as well as iron. The 1.8% Carbon Criterion is used to distinguish between Steel and Cast Iron. It is usually composed of 98-99% Iron and 1-2% Carbon. Omissions? Wootz steel. Composition of 100 g of carbon steel; element % mass (g) = % mass of steel (g) carbon : 1%: treated alloy steels contain 0.30 to 0.40% C. Carbon has two characteristics that account for its power-ful effects from such small amounts: It is very low in density, so therefore a great number of atoms are present in small amounts (by weight), and its

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