Ch. 9 Electrons in Atoms and the Periodic Table

Which of the statements about light is FALSE?

A) Light travels through space at a speed of 3.00 × 108 m/s.

B) Light travels much faster than sound.

C) A packet of light energy is called a photon.

D) A characteristic feature of light that determines its color is its wavelength.

E) All of the above statements are true.

E) All of the above statements are true.

The distance between adjacent wave crests is called:

A) wavelength.

B) frequency.

C) trough.

D) nu.

E) none of the above

A) wavelength.

The number of cycles of a wave that passes a stationary point in one second is called its:

A) wavelength.

B) frequency.

C) crest.

D) trough.

E) none of the above

B) frequency.

Which among the following statements is TRUE?

A) The wavelength of light is inversely related to its energy.

B) As the energy increases, the frequency of radiation decreases.

C) As the wavelength increases, the frequency also increases.

D) Red light has a shorter wavelength than violet light.

E) none of the above

A) The wavelength of light is inversely related to its energy.

How are wavelength and frequency of light related?

A) Wavelength is one-half of the frequency.

B) Wavelength is double the frequency.

C) Wavelength increases as frequency increases.

D) Wavelength increases as the frequency decreases.

E) Wavelength is independent of frequency.

D) Wavelength increases as the frequency decreases.

Which color of the visible spectrum has the shortest wavelength (400 nm)?

A) red

B) orange

C) green

D) violet

E) yellow

D) violet

Which color of the visible spectrum has the longest wavelength (750 nm)?

A) red

B) orange

C) green

D) violet

E) yellow

A) red

Which color of the visible spectrum has photons with the most energy?

A) red

B) orange

C) green

D) violet

E) yellow

D) violet

What is the correct order of the electromagnetic spectrum from shortest wavelength to longest?

A) Gamma Rays→X-rays→Ultraviolet Radiation→Visible Light→Infrared Radiation→Microwaves→Radio Waves

B) Visible Light→Infrared Radiation→Microwaves→Radio Waves→Gamma Rays→X-rays→Ultraviolet Radiation

C) Radio Waves→X-rays→Ultraviolet Radiation→Visible Light→Infrared Radiation→Microwaves→Gamma Rays

D) Gamma Rays→X-rays→Visible Light→Ultraviolet Radiation→Infrared Radiation→Microwaves→Radio Waves

E) Gamma Rays→X-rays→Infrared Radiation→Visible Light→Ultraviolet Radiation→Microwaves→Radio Waves

A) Gamma Rays→X-rays→Ultraviolet Radiation→Visible Light→Infrared Radiation→Microwaves→Radio Waves

Which form of electromagnetic radiation has the shortest wavelength?

A) Radio Waves

B) Microwaves

C) X-rays

D) Gamma Rays

E) Infrared Radiation

D) Gamma Rays

Which form of electromagnetic radiation has the longest wavelength?

A) Radio Waves

B) Microwaves

C) X-rays

D) Gamma Rays

E) Infrared Radiation

A) Radio Waves

Which form of electromagnetic radiation has the highest frequency?

A) Radio Waves

B) Microwaves

C) X-rays

D) Gamma Rays

E) Infrared Radiation

D) Gamma Rays

Which form of electromagnetic radiation has the lowest frequency?

A) Radio Waves

B) Microwaves

C) X-rays

D) Gamma Rays

E) Infrared Radiation

A) Radio Waves

Which form of electromagnetic radiation has photons with the highest energy?

A) Radio Waves

B) Microwaves

C) X-rays

D) Gamma Rays

E) Infrared Radiation

D) Gamma Rays

Which form of electromagnetic radiation has photons with the lowest energy?

A) Radio Waves

B) Microwaves

C) X-rays

D) Gamma Rays

E) Infrared Radiation

A) Radio Waves

What happens to an atom when it absorbs energy?

A) The atom stores the energy for later use.

B) The extra energy increases the speed of the electrons in their orbitals.

C) The atom re-emits the energy as heat.

D) The atom re-emits the energy as light.

E) none of the above

D) The atom re-emits the energy as light.

When sunlight is passed through a prism, what is observed?

A) continuous spectrum

B) nothing

C) bright spots and lines

D) white light

E) none of the above

A) continuous spectrum

When neon light is passed through a prism, what is observed?

A) continuous spectrum

B) nothing

C) bright spots or lines

D) white light

E) none of the above

C) bright spots or lines

Which statement below does NOT follow the Bohr Model?

A) When energy is absorbed by atoms, the electrons are promoted to higher-energy orbits.

B) When an atom emits light, electrons fall from a higher orbit into a lower orbit.

C) The energy emitted from a relaxing electron can have any wavelength.

D) Electrons exist in specific, quantized orbits.

C) The energy emitted from a relaxing electron can have any wavelength.

Which of the following statements about the quantum-mechanical model is FALSE?

A) Orbitals are a probability map of finding electrons.

B) Electrons do not behave as particles.

C) Orbitals are specific paths electrons follow.

D) Electron paths cannot be described exactly.

E) All of the above are correct statements.

C) Orbitals are specific paths electrons follow.

The principal quantum number (n):

A) specifies the 3-D shape of the orbital.

B) specifies the subshell of the orbital.

C) specifies the maximum number of electrons.

D) specifies the principal shell of the orbital.

E) none of the above

D) specifies the principal shell of the orbital.

The subshell letter:

A) specifies the 3-D shape of the orbital.

B) specifies the principal quantum number of the orbital.

C) specifies the maximum number of electrons.

D) specifies the principal shell of the orbital.

E) none of the above

D) specifies the principal shell of the orbital

How many subshells are there in the n = 4 principal shell?

A) 1

B) 2

C) 3

D) 4

E) not enough information

D) 4

How many subshells are there in the n = 2 principal shell?

A) 1

B) 2

C) 3

D) 4

E) not enough information

B) 2

The n = ________ principal shell is the lowest that may contain a d-subshell.

A) 1

B) 2

C) 3

D) 4

E) not enough information

C) 3

Which subshell letter corresponds to a spherical orbital?

A) s

B) p

C) d

D) f

E) not enough information

A) s