Show:
Basic Configurations
Working Backward
neutral Configurations
Configurations
With charges
Miscellaneous
100
What is the electron configuration for H?
1s1
100
What element has the electron configuration: 1s2 2s2 2p4 ?
Oxygen (O)
100
Write the electron configuration for scandium.
1s2 2s2 2p6 3s2 3p6 4s2 3d1
100

What is the electron configuration for lithium with a charge of +1?

1s2

100

How many electrons are in the highest energy level for neutral Boron?

3

200
What is the electron configuration for carbon?
1s2 2s2 2p2
200
What element has the electron configuration: 1s2 2s2 2p6 3s2 3p6 4s1 ?
Potassium (K)
200
What is the electron configuration for Fe?
1s2 2s2 2p6 3s2 3p6 4s2 3d6
200

What is the electron configuration for Al+3?

1s2 2s2 2p6 

200

What is filled after 4s?

3d

300
Give the electron configuration for Ne.
1s2 2s2 2p6
300
What element has the electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5 ?
Bromine (Br)
300
What is the electron configuration for Zn?
1s2 2s2 2p6 3s2 3p6 4s2 3d10
300

What is the electron configuration for Sulfur with 18 electrons?

1s2 2s2 2p6 3s2 3p6

300

what element is in the thrid energy level with 5 valence electrons 

P
400
What is the electron configuration for Na?
1s2 2s2 2p6 3s1
400
What element has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 ?
Krypton (Kr)
400
What is the electron configuration for Zr?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2
400

Write the electron configuration for bromine with 36 electrons?

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6

400
What rule tells us: to "start at the lowest energy level and build up to the higher energy levels only after the lowest are filled."
Aufbau principle
500
Give the electron configuration for Cl.
1s2 2s2 2p6 3s2 3p5
500
What element has the electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 ?
Strontium (Sr)
500

Write the electron configuration for Bi?

(xe) 6s24f145d106p3

500

how many valence electrons does nitrogen with a charge of -3 have?

8

500
What rule states that: "each p orbital must receive one electron before any p orbital can receive a second filling electron."
Hund's rule