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Suppose a pure Si crystal has 5 × 10^28 atoms m^-3 . it is doped by 1 ppm concentration of pentavalent As. Calculate the number of electrons and holes. Given that n1 = 1.5 × 10^16m^-3 .
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SOLVED: 77.14 pointt Zumchempa E 0I1 Hy Hotas Ask Your Toachar The units parts million (ppm) and parts per billion (Ppb) are commonly used enviranmental chemists In general; ppm mcans solutc ior
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What Is Restricted Substances & correlation between ppm (mg/kg) and Percentage
SOLVED: the critical concentration of micronutrients needed in tissue is equal to or less than (1) 1 ppm (2) 10 ppm (3) 100 ppm (4) 1000 ppm
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