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

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

• orbits around the nucleus

• falls into the nucleus

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

• money

Who stipulated that electrons orbit the nucleus at fixed energies and distances?

• JJ Thomson

• John Dalton

• Ernest Rutherford

• Niels Bohr

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

• energy levels

• electron lanes

• electron places

• atomic mass

The lowest energy level an electron will occupy in an atom at an ordinary condition is called the ____.

• ground state

• excited state

• highest state

• none of the above

When an electron absorbs enough energy, it jumps up to a higher level. This is called

• absorption state

• excited state

• emission state

• relaxation state

• ground state

According to Bohr's atomic model, the energy absorbed by an electron upon excitation comes in a fixed amount called

• exact energy

• fixed energy

• quantized energy

• None of the above

In the Bohr model, how do electrons travel?

• Electrons move in and out of the nucleus

• Electrons do not move

• Electrons move in circular orbits around the nucleus

• Electrons move in a straight line