This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The air that you breathe doesn't emit visible light indicates that most of the electrons of its ... (Read 132 times)

B

  • Hero Member
  • *****
  • Posts: 570
on: Jul 29, 2018
The air that you breathe doesn't emit visible light indicates that most of the electrons of its atoms are
 
  A) in the ground state.
  B) excited to metastable states.
  C) relatively cool.
  D) electrically neutral.
  E) relatively far apart.

Question 2

If light in a spectroscope were passed through a star-shaped opening instead of a thin slit, spectral lines would appear as
 
  A) lines of poorer resolution.
  B) stars.
  C) blobs of no definite shape.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

l.stuut

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B


B

  • Member
  • Posts: 570
Reply 2 on: Jul 29, 2018
Excellent

aliotak

  • Member
  • Posts: 326
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Vertical structuring of the oceans is associated with substantial variation in light and temperature Vertical structuring of the oceans is associated with substantial variation in light and temperature
Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int
Distribution of bonding and outer nonbonding electrons in the peptide group Distribution of bonding and outer nonbonding electrons in the peptide group
A typical 12 volt test light. A typical 12 volt test light.
In the retina, there are two types of light receptor cells: Rods are sensitive to differences in lig In the retina, there are two types of light receptor cells: Rods are sensitive to differences in lig
Draw the electric field of: •An electron and proton •Two electrons Draw the electric field of: •An electron and proton •Two electrons
Video: System organization - PPM system types (Somatic, Autonomic & Enteric) and Reflex arc types

For a complete list of videos, visit our video library