Atomic Models and Electron Configuration Quiz

What causes the different colors in fireworks?

• The type of paper used

• The altitude at which they explode

• The shape of the firework shell

• The arrangement of electrons in metal salts

According to Bohr's model, what happens when an electron jumps to a higher energy level?

• It becomes a proton

• It absorbs energy

• It emits light

• It changes its charge

What is a key feature of the quantum mechanical model of the atom?

• Electrons have a definite path

• Electrons are stationary

• Electrons move in fixed orbits

• Electron locations are probabilistic

Which shape is associated with a p orbital?

• Dumbbell

• Tetrahedral

• Cubic

• Spherical

How many electrons can a single s orbital hold?

• 6

• 4

• 1

• 2

What is the maximum number of electrons that can occupy a d orbital?

• 2

• 14

• 6

• 10

According to the Aufbau principle, which orbitals do electrons fill first?

• Higher energy orbitals

• Orbitals with the least electrons

• Lower energy orbitals

• Orbitals with the most electrons

What does Pauli's exclusion principle state about electrons in an orbital?

• They must be in the same energy level

• They must have the same spin

• They must have opposite spins

• They must be in different orbitals

According to Hund's rule, how do electrons fill orbitals within the same sub-level?

• They spread out with opposite spins

• They fill the lowest energy orbital first

• They spread out with the same spin

• They pair up immediately

What is the electron configuration for sodium?

• 1s2 2s2 2p6 3d1

• 1s2 2s2 2p6 3s1

• 1s2 2s2 2p5 3s1

• 1s2 2s2 2p6 3p1