The number of silicon atoms per m3 is 5 × 1028. This is doped simultaneously with 5 × 1022 atoms per m3 of Arsenic and 5 × 1020 per m3 atoms of Indium. Calculate the number of electrons and holes.
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The number of silicon atoms per m3 is 5 × 1028. This is doped simultaneously with 5 × 1022 atoms per m3 of Arsenic and 5 × 1020 per m3 atoms of Indium. Calculate the number of electrons and holes.
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- The nucleus of an atom can be modeled as several protons and neutrons closely packed together. Each particle has a mass of 1.67 ✕ 10−27 kg and radius on the order of 10−15 m. (a) Use this model and the data provided to estimate the density of the nucleus of an atom. kg/m3 (b) Compare your result with the density of a material such as iron (ρ = 7874 kg/m3). What do your result and comparison suggest about the structure of matter?A proton, which is the nucleus of a hydrogen atom, can be modeled as a sphere with a diameter of 2.4 fm and a mass of 1.67 10-27 kg.Densities of Some Common Substances at Standard Temperature (0°C) and Pressure (Atmospheric) Substance ρ (kg/m3) Substance ρ (kg/m3) Air 1.29 Iron 7.86 ✕ 103 Air (at 20°C andatmospheric pressure) 1.20 Lead 11.3 ✕ 103 Aluminum 2.70 ✕ 103 Mercury 13.6 ✕ 103 Benzene 0.879 ✕ 103 Nitrogen gas 1.25 Brass 8.4 ✕ 103 Oak 0.710 ✕ 103 Copper 8.92 ✕ 103 Osmium 22.6 ✕ 103 Ethyl alcohol 0.806 ✕ 103 Oxygen gas 1.43 Fresh water 1.00 ✕ 103 Pine 0.373 ✕ 103 Glycerin 1.26 ✕ 103 Platinum 21.4 ✕ 103 Gold 19.3 ✕ 103 Seawater 1.03 ✕ 103 Helium gas 1.79 ✕ 10−1 Silver 10.5 ✕ 103 Hydrogen gas 8.99 ✕ 10−2 Tin 7.30 ✕ 103 Ice 0.917 ✕ 103 Uranium 19.1 ✕ 103 (a) Determine the density of the proton.kg/m3The number of silicon atoms per m3 is 5 × 1028. This is doped simultaneously with 5 × 1022 atoms per m3 of Arsenic and 5 × 1020 per m3 atoms of Indium. Calculate the number of electrons and holes. Given that nI = 1.5 × 1016m–3. Is the material n-type or p-type?
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