Best Electron Configuration Questions and Answers (Q&A) - ProProfs Discuss

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What is the electron configuration for chromium?

K.Paul
Answered: Dec 11, 2017

The correct answer to the question “What is the electron configuration for chromium?” is letter B or 1s2 2s2 2p6 3s2 3p6 421 3d5. The actual electron configuration of Cr is [AR] 4s1...Read More

4 Answers

2247 views

What element(s) could have the quantum numbers 3, 1, -1, -1/2?

Bobandersson
Answered: Sep 18, 2017

It would only be sulfur due to it's negative spin of -1/2. Aluminum would have a positive spin of +1/2

2 Answers

1210 views

What is the frequency of a photon absorbed when the atom undergoes a transition from n1=2 to n2=4, (R=1.096776x107m-1; c=3.0x108 m/s)?

Matz Lewis Clark, College student
Answered: Jul 18, 2019

The correct answer to this question is 6.165x10^14 s^-1. This type of question could be found on a chemistry test, as it is related to electron configuration, which is when electrons are...Read More

3 Answers

739 views

What is a possible set of quantum numbers for the last electron added to complete an atom of gallium, Ga, in its ground state?

C. Block, English Professor
Answered: May 23, 2019

There aren’t a lot of people who are familiar with this element. This is a type of metal that is blue and silvery in color, especially when they are at standard temperature. If in case it...Read More

2 Answers

712 views

What will be the wavelength of the photon emitted when a hydrogen atom undergoes a transition from n=5 to n=C. (R=1.096776x107 m-1)?

K.Paul
Answered: Dec 11, 2017

To calculate the wavelength, you will need to find the velocity of the wave and divide it by the frequency. Usually waves are measures in meters. So, the velocity is the speed of the wave....Read More

2 Answers

691 views

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