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The following electron configurations correspond to neutral atoms in excited states. What is the element and what is the ground state electron configuration for each atom? 1s22s22p63s23p63d5 [Kr]5s24d105p46s1

The following electron configurations correspond to neutral atoms in excited states. What is the element and what is the ground state electron configuration for each atom? 1s22s22p63s23p63d5 [Kr]5s24d105p46s1

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The following electron configurations correspond to neutral atoms in excited states. What is the element and what is the ground state electron configuration for each atom?
  1. 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 5
  2. [ K r ] 5 s 2 4 d 10 5 p 4 6 s 1

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10a) (15 Points) In the following circuit, an NMOS transistor is used to switch the current to the LED. Assume the following parameters: Microcontroller: vO = 4.6 V iOH < −5 mA and vOL = 0.4 V, iOL < 8 mA LED: vf = 2.0 V, PLED−max = 200 mW Desired LED current 100 mA Transistor: vT = 1.0 V, RDS(ON) = 0.5 Ω, iD−max = 500 mA a. When the output of the microcontroller is low, what is the operating region of the transistor? b. When the output of the microcontroller is high, what is the operating region of the transistor? c. With the microcontroller output high, and the transistor in the ohmic region, what value of R results in an on-state LED current of 100 mA? d. What standard value of resistor (Table is on page 33 of the text) comes closest to the desired LED current? 10b) Suppose we rearrange the NMOS circuit in problem 10 as shown. Using the same parameters as in the previous problem, answer the following: a. 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