Electron Configuration 5.3 Quiz

What is the electron configuration notation for carbon?

• 2s2 2p2 3s2

• 1s2 2s2 2p2

• 1s2 2s1 2p3

• 1s2 2s3 2p1

How many valence electrons does oxygen have?

• 6

• 8

• 4

• 2

What is the ground-state electron configuration for magnesium?

• 1s2 2s2 2p6 3s1

• 1s2 2s2 2p6 3s2

• 1s2 2s2 2p5 3s3

• 1s2 2s2 2p6 3s3

What is the electron arrangement for nitrogen?

• 1s2 2s2 2p4

• 1s2 2s2 2p3

• 1s2 2s1 2p4

• 1s2 2s2 2p2

What is the aufbau principle?

• Electrons fill orbitals in order of decreasing energy levels

• Electrons fill orbitals based on their mass

• Electrons fill orbitals in order of increasing energy levels.

• Electrons fill orbitals in any random order

What is the electron configuration notation for sulfur?

• 1s2 2s2 2p6 3s2 3p4

• 1s2 2s2 2p6 3s2 3p5

• 1s2 2s2 2p6 3s2 3p3

• 1s2 2s2 2p6 3s2 3p6

How many valence electrons does phosphorus have?

• 7

• 10

• 3

• 5

What is the ground-state electron configuration for chlorine?

• 1s2 2s2 2p6 3s2 3p3

• 1s2 2s2 2p6 3s2 3p5

• 1s2 2s2 2p6 3s2 3p4

• 1s2 2s2 2p6 3s2 3p6

What is the electron arrangement for potassium?

• 2, 8, 1

• 2, 8, 8, 2

• 2, 8, 8, 8, 1

• 2, 8, 8, 1

Explain the significance of valence electrons in an atom.

• Valence electrons have no impact on the behavior of the atom.

• Valence electrons determine the atomic weight of the atom.

• Valence electrons are responsible for the color of the atom.

• Valence electrons determine the reactivity and bonding behavior of an atom.