What did the Bohr model fail to account for regarding electrons?

• Their particle nature

• Their wave nature

• Their charge

• Their mass

Tags

NGSS.HS-PS4-3

Which concept is used to describe the behavior of electrons in terms of waves and particles?

• Quantum entanglement

• Wave-particle duality

• Quantum superposition

• Quantum decoherence

Tags

NGSS.HS-PS4-3

How many electrons can each orbital hold?

• One

• Two

• Three

• Four

What is the name of the subshell with a dumbbell shape?

• s

• p

• d

• f

Which subshell is represented by a shape with more complex/multiple lobes?

• s

• p

• d

• f

What is the principal quantum number for the second energy level?

• 0

• 1

• 2

• 3

What analogy is used to explain the increase in energy levels?

• A staircase

• A building

• A mountain

• A road

Which of the following is a correct statement about the magnetic quantum number?

• It defines the energy level of an electron

• It indicates the orientation of an orbital in space

• It determines the spin of an electron

• It describes the shape of an orbital

What is the appearance of the s orbital in a 3D model?

• Spherical

• Cubic

• Cylindrical

• Conical

What is the shape of the s-block orbital?

• Spherical

• Dumbbell-shaped

• Double dumbbell-shaped

• Linear