Periodic Table Electron Configurations

What is the electron configuration of carbon?

• 1s2 2s2 2p2

• 1s2 2s3 2p1

• 1s2 2s3 2p3

• 1s2 2s1 2p3

How many electrons are in the 3d subshell?

• 12

• 8

• 5

• 10

What is the electron configuration of oxygen?

• 1s2 2s2 2p4

• 1s2 2s2 2p3

• 1s2 2s1 2p5

• 1s2 2s3 2p3

Which element has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s1?

• Iron

• Calcium

• Potassium (K)

• Sodium

What is the electron configuration of iron?

• [Kr] 4d6 5s2

• [Xe] 4f14 5d6

• [Ne] 3s2 3p6

• [Ar] 3d6 4s2

How many electrons can the d subshell hold?

• 10

• 8

• 5

• 12

What is the electron configuration of neon?

• 1s2 2s1 2p7

• 1s2 2s3 2p5

• 1s2 2s2 2p5

• 1s2 2s2 2p6

Which element has the electron configuration 1s2 2s2 2p6 3s2 3p6?

• Xenon (Xe)

• Argon (Ar)

• Krypton (Kr)

• Neon (Ne)

What is the electron configuration of potassium?

• 1s2 2s2 2p6 3s2 3p6 4s0

• 1s2 2s2 2p6 3s2 3p6 4s1

• 1s2 2s2 2p6 3s2 3p6 4s2

• 1s2 2s2 2p6 3s2 3p6 4s3

How many electrons are in the 4d subshell?

• 10

• 12

• 6

• 8