Which type of bond would these atoms likely form? 8. N Nitrogen Охудen 14.01 15.99 Perioure Elements Pb Bi Po At Rn Ce Pr Nd Pm Sm Eu Tb Dy Ho Er Tm Yb Lu Th Pa O lonic Bond O Covalent Bond
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A: Molar mass of N2 = 2 * Atomic mass of N = 2 * 14 g/mol = 28 g/mol
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- The bond length in F2 is 1.417 Å, instead of twice theatomic radius of F, which is 1.28 Å. What can account forthe unexpected length of the F_ F bond?The measured density of a CsCl crystal is 3.988 g/cm3. What is the equilibrium separate distance of Cs+ and Cl- ions?In cesium iodide, how many Clatoms are "nearest neighbors” of Cs+? How many Cs+ atoms are "nearest neighbors” of Cl?
- A high-leaded brass that has a composition of 65.5 wt% Cu, 32.0 wt% Zn, and 2.5 wt% Pb with density equal to 8.94 g/cm^3, 7.13 g/cm^3, and 11.^35 g/cm3, respectively. Determine its approximate density Write up to 3 decimal places. Determine the atom percent (%) of lead. Atomic weights: Cu-63.55 g/mol ;Zn-65.41 g/mol ; Pb-207.2 g/mol Write up to 3 decimal places.11. Number of free electrons in copper is 8E28/m³ Calculate T for Cu...and lat 300K Answer: 26 fsA:08 الرسائل المحفو. . . 1 03: Rhenium has a Hexagonal Close-Packed crystal structure with an atomic radius of 0.137 nm and a ratio c/a of 1.615, compute: a) The volume of the unit cell. b) The theoretical density c) Atomic packing factor Note: Avogadro's' number = 6.023×10²³ Atomic weight = 186.21 g/mol إضافة وصف.. . III
- Q5: Given the force constant for ¹4N-¹4N is 2287 N m²¹, estimate a) the zero-point energy and b) the observed frequency of radiation (in cm-¹) that could be absorbed for the N₂ bond. Explain your assumptions. c) The bond dissociation energy of ¹4N-¹4N is 945.3 kJ mol¹¹. What fraction of the bond dissociation energy is the zero-point energy for N₂?Calculate the fraction of atom sites that are vacant for the material at its melting temperature of 570 K. The energy for vacancy formation is 0.56 eV/atom, and Boltzmann's constant, K=8.62x105 eV/atom-K. O a. 1.11 x10-5 O b. 1.36 x10-5 O c. 1.32 x10-5 O d. 1.22 x10-513 The surfoce temperature of the oun * is obout 6000 K. Accordingly which wovelenght corresponds to the greatest 15 value of the electro etic. rodiotion from the an? Interpret your reaul 16 occor ding to the sensitiuity ofhe humon. ge. 17 18 19
- Calculate the base current required to switch a resistive load of 8mA for an npn- transistor with B = 156. Lütfen birini seçin: a.113.21 pA b.84.97 µA c.66.67 µA d.96.38 pA e.51.28 µASt. John's University - My App X A ALEKS - Iffat Khan G how many valence electrons in x + i www-awn.aleks.com/alekscgi/x/lsl.exe/1o_u-lgNslkr7j8P3jH-lijkPWvZoZLqkt1FLIq7wcPWKzBYGfE9IMFjNG0dB_IllkUmxjvdZ3p44elzs8GVwNxjbe5NR20.. * O MEASUREMENT Setting up the solution to a basic quantitative problem The electric field strength between the plates of a simple air capacitor is equal to the voltage across the plates divided by the distance between them. When a voltage of 94.8 V is put across the plates of such a capacitor an electric field strength of 2.3 kV is measured. cm Write an equation that will let you calculate the distance d between the plates. Your equation should contain only symbols. Be sure you define each symbol. Your equation: d =| Definitions of your symbols: kV D = 2.3 cm = 94,8 V Explanation Check © 2021 McGraw-Hill Education. All Riahts Reserved. Terms of Use I Privacy étv IIA silicon p-n junction consists of a p-type region containing 3x1016 cm-3 acceptors and an n- type region containing also 1017 cm-3 donors. a. Calculate the density of electrons and holes in both p-type and n-type regions under thermal equilibrium at room temperature. b. Calculate the built-in potential of the p-n junction? c. Calculate the width of the depletion layer under a reverse bias of 1.0 V. d. Based on c, calculate the junction capacitance. Note that the junction cross-session area is 1.2 mm2.