Unit 4 Review

A certain photon of light has a wavelength of 4.22x10^-7nm. What is the frequency? (v=c/λ)

• 7.11x10²³ Hz

• 7.11Hz
• 1.41x10^-15
• -1.41x10¹⁵

The blue section of the wave is measuring _________________.

• wavelength
• crest
• trough
• amplitude 

What is the energy of a quantum of light with a frequency of 7.39x10¹⁴Hz.(E=Hv)

• 4.88x10¹⁹ J

• 4.88x10^-19 J

• 2.22x10²³ J

• 2.22x10^-23 J

Certain blue lights have a frequencey of 6.91x10¹⁴Hz. What is the wavelength? (λ=c/v)

• 4.34x10²¹ m

• 4.34x10^-21 m

• 4.34x10^-7 m

• 2.07x10²³ m

According to the Bohr Model, electrons are only found in specific orbits around the nucleus called __________________________

• Energy Levels
• Electron Lanes
• Electron Places
• Atomic Mass

When atoms _____________ energy, their electrons move to higher energy levels. These electrons _____________ energy by emitting light when they return to lower energy levels.

• lose, absorb

• absorb, lose

• lose, lose

• absorb, absorb

Emission spectra (bright line spectra) are created when electrons move from ___.

• higher to lower energy levels.

• lower to higher energy levels.

• s orbitals to p orbitals.

• one atom to a different atom.

Each element on the periodic table can be identified by its

• classification as a solid, liquid or gas.

• location on the table.

• ability to react to form compounds.

• unique spectral "fingerprint."

In which state does an electron have the least amount of energy?

• Excited state

• Ground state

• Orbital

• Bohr model

Which wave in the diagram has the greatest wavelength?

• 1
• 2
• 3
• 4