1. Which of the following electonic transitions in a hydrogen atom emits energy?

Question

1. Which of the following electonic transitions in a hydrogen atom emits energy? a. n=3 to n=4 , b. n=1 to n=4, c. n=4 to n=2

2. Which is not a set of quantum numbers? a. n=1, l=0, ml=0, ms=1/2,   b. n=5, l=3, ml=2, ms=-1/2,    c. n=4, l=2, ml=-2, ms=1/2   d. n=s, l=1, ml=-1, ms=0       e. n=2, l=1, ml=1, ms=-1/2

3. How many subshells are in n=2 energy shell/ level

4.When waves combine in phase with each other that is?

a. constructive interfearence b. destructice interfearence c. photoelectric effect d. quantized transition

5. How many orbitals are in the 3p subshell and what is the max number of electrons thatthe subshell holds?

6. An orbital with the quantum number n=5, l=3 , ml=-2 is in what subshell?

Explanation / Answer

1)c

2)d

3)2 they are s&p sub shells

4)a

5)3:six electrons

6)f- sub shell

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