Emission Spectrum DOL

What is the relationship between frequency and photon energy?

• Inversely proportional

• Directly proportional

• Unevenly proportional

• Statically proportional

Tags

NGSS.HS-PS4-4

Which statement below summarizes the process of light emission from electron excitation?

• The electron absorbs energy, moves to a higher energy level, where it releases the energy as light as it falls back to its ground state.

• The electron releases energy, moves to a lower energy level where it absorbs the energy as light as it returns back to its ground state.

• The electron releases energy, moves to a higher energy level where it absorbs more energy as light as it returns back to its ground state.

• The electron absorbs energy, moves to a lower energy level and releases the energy as light as it returns back to its excited state.

Tags

NGSS.HS-PS4-3

Which of the following determines the frequency of the photon of light emitted by an electron?

• The number of energy levels the electron moves

• The difference in energy between the levels

• The amplitude of the light emitted

• How often the electron becomes excited

• The distance from the nucleus for the electron

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

• 5.17 x 10^{-8} m

• 4.18 x 10^{-7} m

• 3.00 x 10^8 m

• 4.76 x 10^{-9} m

Tags

NGSS.HS-PS4-1

• The wavelength (λ) can be calculated using the formula E = hc/λ. Given: E = 3.15×10^-19 J, h = 6.626×10^-34 J·s, c = 3.00×10^8 m/s λ = hc/E = (6.626×10^-34 × 3.00×10^8) / (3.15×10^-19) = 2.10×10^-7 m = 210 nm

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3