Electron Configurations Video

How many sublevels are there within the 2nd energy level?

• 4

• 1

• 2

• 3

How many electrons can an S orbital hold?

• 2

• 3

• 4

• 1

What is the shape of the P sublevel?

• Sphere

• Cube

• Cylinder

• Dumbbell

How many orbitals are there in the D sublevel?

• 6

• 3

• 5

• 4

Which block of the periodic table represents the D sublevel?

• F

• P

• D

• S

What is the electron configuration for hydrogen?

• 2s1

• 1s2

• 1s1

• 2s2

What is the electron configuration for helium?

• 1s1

• 2s2

• 1s2

• 2s1

What is the electron configuration for lithium?

• 1s2 2s1

• 1s1

• 1s2

• 2s2

What is the electron configuration for boron?

• 4s2 4p1

• 3s2 3p2

• 3s2 3p1

• 2s2 2p1

How many valence electrons does boron have?

• 4

• 1

• 2

• 3