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  1. Electron
  2. Electron Configuration

Electron Configuration Questions and Answers (Q&A)

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

1425 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

625 views
What is the electronic configuration of Calcium?
L. Brett, Sales Manager
Answered: May 29, 2019
Everyone knows that we need calcium for our bodies. It makes our body healthy and strong. When we are little, our parents used to tell us to drink all of our milk to make our bones strong. It...Read More

2 Answers

619 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

540 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

514 views
What is the electron configuration for bromine?
T. Perez
Answered: May 10, 2018
Bromine is an elemental chemical with symbol Br and automatic number 35. It is the third lightest halogen and is fuming red-brown liquid at room temperature that evaporates readily to a colored...Read More

2 Answers

498 views
Which element has this 1s2 2s2 2p6 3s1 3p6 4s1 electron configuration?
John Adney
Answered: Feb 08, 2017
How does this question even work because technically there are only 18 which is Argon but you also cant have 1 it needs to fill at least 2 or fill the shell before it.

3 Answers

487 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

448 views
What do the numbers 1-7 stand for in an electron configuration?
John Smith
Answered: Jan 22, 2021
Subshells

1 Answer

414 views

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