Bohr & Waves

The characteristic color bands that a hot, dilute gas emits when viewed with a spectroscope are called...

• emission spectra

• absorption spectra

• continuous spectra

• black body radiation

The shortest wavelength in visible light is______.

• violet
• red
• blue
• yellow

Tags

NGSS.HS-PS4-1

_______ carry the greatest amount of energy. 

• x-rays
• gamma rays
• infrared rays
• visible light

A wave with a large wavelength will have a ______ frequency and _____ energy

• high, low
• high, high
• low, high
• low, low

Tags

NGSS.HS-PS4-1

Which drawing represents the process by which an emission line is formed? [Emission means that energy is being "emitted" or released by the atom.]

• A

• B

• C

• D

An electron in n=4 has more _______ than an electron in n=2

• Stability

• Energy

• Spin

• Wave nature

Emission of light from an atom occurs when an electron

• drops from a higher to a lower energy level.
•    jumps from a lower to a higher energy level.   
•    moves within its atomic orbital.
• falls into the nucleus.

Tags

NGSS.HS-PS4-3

Four gas spectra are given. What gases are in the unknown mixture?

• Gas B & Gas D

• Gas C & Gas B

• Gas A & Gas D

• Gas D & Gas C

Tags

NGSS.HS-PS4-3

The _______________ determines the color of visible light. 

• wavelength
• speed
• amplitude
• light

Tags

NGSS.HS-PS4-1

Which model of the atom said that electrons circle the nucleus in orbits of a fixed radius?

• Bohr model
• Quantum mechanical model
• Not true of either model
• Both Bohr and Quantum mechanical model