Bohr Model

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

_______ 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

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.

The _______________ determines the color of visible light. 

• wavelength
• speed
• amplitude
• light

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

When talking about energy levels in an atom, what is an "excited state"?

• The highest energy state of an atom.
• Any level higher than the ground state.
• The lowest energy state of an atom.
• When an atom loses an electron

According to the Bohr model of the atom, the single electron of a hydrogen atom circles the nucleus

• in specific, allowed orbits

• in one fixed orbit at all times

• at any of an infinite number of distances, depending on its energy

• counterclockwise